SILICON CHIP PROJECTS & CIRCUITS PUBLISHED NOVEMBER 1987 TO DECEMBER 2012

PCB PREFIX NUMBERS AND SUBJECT HEADINGS

01 AUDIO/HI-FI/HOME THEATRE
02 TV/VIDEO
03 SECURITY/BURGLAR ALARMS ETC
04 TEST & MEASUREMENT
05 AUTOMOTIVE
06 RADIO COMMUNICATIONS
07 COMPUTERS
08 GAMES
09 MODEL RAILWAY/RADIO CONTROL
10 MAINS POWER CONTROL
11 BATTERY/INVERTERS/FENCES/UPS
12 TELEPHONES/FACSIMILE
13 PHOTOGRAPHY/ASTRONOMY
14 BATTERY CHARGERS
15 REMOTE CONTROL
16 LASERS/LIGHTING
17 SOLAR/WIND/RENEWABLES
18 POWER SUPPLIES/REGULATORS
19 TIMERS/COUNTERS/SEQUENCERS
20 BOATING/NAUTICAL/MARINE
21 WEATHER/CLIMATE/TEMPERATURE/HUMIDITY/ETC
22 ROBOTICS
23 MUSIC/MUSICAL INSTRUMENTS
24 MICROCONTROLLER ACCESSORIES & COMPUTER PERIPHERALS
25 MEDICAL/HUMAN AND ANIMAL
99 MISCELLANEOUS
** CIRCUIT NOTEBOOK

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01 AUDIO/HI-FI/HOME THEATRE

Car Stereo For Your Home SC0111287                November 1987
Greg Swain see also Ask SC February 1988

100W Amplifier Module SC111287                    December 1987
Leo Simpson Jaycar kit
see also Ask SC Feb 88 and Kit Clinic Dec 88

Subcarrier/ACS Adaptor For FM Tuners SC0611287    January 1988
John Clarke/Leo Simpson
See also Ask SC Nov 92 for modifications

Studio 200 Stereo Power Amplifier SC111287        February 1988
Leo Simpson
Modifications: January 1990

Endless Loop Tape Player SC11488                  March 1988
Greg Swain   

Old-Time Crystal Radio                            March 1988
John Hill                

Headphone Amplifier For CD Players SC11688        April 1988
John Clarke

Studio 200 Stereo Control Unit SC011688     Pt 1  June 1988
Leo Simpson/Bob Flynn/Greg Swain            Pt 2  July 1988
Altronics kit Errata: August, October 1988,
September 1989, November 1990

Masthead Amplifier For TV & FM                    July 1988
Branko Justic

High Performance FM Antenna 5-Element             October 1988
Bob Flynn

Classic Matchbox Crystal Set                      October 1988
Steve Payor

High Power PA Amplifier Module SC0111188          November 1988
Bob Flynn

120W PA Amplifier SC0111288                 Pt 1  December 1988
Microphone, Preamp & Mixer Stages           Pt 2  January 1989
Bob Flynn Errata: April 1989

Minstrel 2-30 Loudspeakers SC0110289              February 1989
Leo Simpson

Stereo Compressor For CD Players SC0120389        March 1989
Greg Swain Errata: May 1989

32-Band 1/3 Octave Equaliser SC0110389      Pt 1  March 1989
Studio Series Leo Simpson/John Clarke       Pt 2  April 1989    
Errata: October 1989                      

Telephone Bell Monitor/Transmitter SC0120489      April 1989
Greg Swain

Syntom: A Synthesised Tom-Tom                     May 1989
Leo Simpson

Passive Loop Antenna For AM Radios                June 1989
Greg Swain Technikit Electronics, Melbourne

20-Band Stereo Equaliser SC0110389/SC0110789 Pt 1 August 1989
Studio Series Leo Simpson/Bob Flynn          Pt 2 September 1989

Auto Zero Module SC0110889                        September 1989
Null Your Amplifier's DC Output To Zero
John Clarke           

2-Chip Portable AM Stereo Radio SC0610889   Pt 1  September 1989
Steve Payor                                 Pt 2  October 1989
Errata: May 1990                            Pt 3  November 1989

Balanced Input/Output Stages SC0111289            December 1989
For The Studio Series Equalisers John Clarke

Modifications To The Studio 200 Amplifier         January 1990

16-Channel Mixing Desk SC01102901/2/3       Pt 1  February 1990
John Clarke/ Leo Simpson                    Pt 2  March 1990
Errata: October 1990                        Pt 3  April 1990
Modifications: November 1990                Pt 4  May 1990

Midrange Tone Control Mono & 5-Band Equaliser     March 1990
Refer to 16-Channel Mixing Desk above           & April 1990

Universal Stereo Preamplifier SC0110690           June 1990
John Clarke/Leo Simpson

Modifications To The 16-Channel Mixer             November 1990

Synthesised Stereo AM Tuner SC01101911-3    Pt 1  February 1991
John Clarke/Greg Swain                      Pt 2  March 1991
Errata: September 1991, January 1993        Pt 3  April 1991

Stereo Audio Expander SC01105911                  May 1991
Darren Yates Errata: July 1991                                    

Howl Suppression For Public Address Systems       June 1991
Darren Yates

CD Error Analyser                           Pt 1  July 1991
SC01405911-3                                Pt 2  August 1991
Stephen McBride                             Pt 3  November 1991

Loudspeaker Protector SC01105911                  July 1991
Bob Flynn                           

Masthead Amplifier For TV & FM SC02107911         August 1991
John Clarke/Greg Swain

Studio 3-55L 3-Way Loudspeaker System             September 1991
Greg Swain

Low-Noise 4-Channel Guitar Mixer SC01101921       January 1992
Darren Yates DSE, Jaycar kits
See also Circuit Notebook February 1996

Plastic Power Stereo Power Amplifier SC01102921   February 1992
Leo Simpson/Bob Flynn

Studio Twin Fifty Stereo Amplifier          Pt 1  March 1992
SC01103921-2-3 SC01102921                   Pt 2  April 1992
Leo Simpson/Bob Flynn
Errata: Dec 1992, Feb 1993, Sept 1993

The Eliminator SC04104921                         May 1992
Power Supply For Personal Radios
Marque Crozman

Multi-Station Headset Intercom SC01302921   Pt 1  June 1992
Marque Crozman Altronics K5250              Pt 2  July 1992

Dummy Load Box For Large Audio Amplifiers         August 1992
Leo Simpson

Mini Amplifier For Personal Stereos SC01110921    October 1992
Darren Yates DSE kit

FM Radio Receiver SC06111921                      November 1992
Darren Yates DSE K5014

Peerless PSK60/2 2-Way Hifi Loudspeakers          January 1993
Tom Manning

Flea-Power AM Radio Transmitter SC06112921        January 1993
AKA AM Micromitter Darren Yates
PCB AVAILABLE FROM SC

Audio Level/VU Meter With LED Readout             February 1993
Bernie Gilchrist DSE kit

Audio Mixer For Camcorders 01112921               March 1993
Darren Yates Errata: April 1993

Audio Power Meter 01105931                        April 1993
Darren Yates Altronics, DSE kits

IR Remote Volume Control 01305931-2         Pt 1  May 1993
John Clarke                                 Pt 2  June 1993
Replacement Module For The SL486 & MV601
Remote Control Receiver ICs: April 1996

AM Radio Trainer 06106931                   Pt 1  June 1993
Marque Crozman/Leo Simpson DSE kit          Pt 2  July 1993

Crystal Controlled IF Generator 06107931          July 1993

Single Chip Sound/Message Recorder 01104931       July 1993
Darren Yates                                      14MRP
See also Circuit Notebook September 1997

Stereo Preamplifier With IR R/C 01308931-2  Pt 1  September 1993
John Clarke                                 Pt 2  October 1993
Errata: April 1994                          Pt 3  November 1993
Replacement Module For The SL486 & MV601
Remote Control Receiver ICs: April 1996

Solid-State Message Recorder Module               October 1993
Greg Swain DSE kit

FM Wireless Microphone For Musicians              October 1993
Branko Justic Oatley Electronics kit

Low-Cost 25W Amplifier Module 01112931            December 1993
Darren Yates Altronics K5113, DSE, Jaycar kits
Errata: March 1995

1-Chip Melody Generator                           December 1993
Bernie Gilchrist DSE kit

90-Second Voice/Message Recorder 01202941         February 1994
Darren Yates Altronics, Jaycar kits

CHAMP: Single Chip Audio Amplifier 01102941       February 1994
Darren Yates Errata: June 1994
Altronics K2115, DSE K5604, Jaycar KC5152
PCB AVAILABLE FROM SC

Build A Simple 1-Valve Receiver                   February 1994
John Hill Vintage Radio

Intelligent IR Remote Controller                  March 1994
Ben Douchkov Benetron kit

50W Audio Amplifier Module Uses LM3876 01103941   March 1994
Darren Yates Altronics K5114, DSE, Jaycar KC5150
Errata: December 2000, August 2003

Voice Activated Audio Switch 01203941             March 1994
For FM Wireless Microphones Darren Yates

Low-Noise Universal Stereo Preamplifier 01106941  April 1994
Darren Yates Altronics, DSE, Jaycar KC5159
See Ask SC August 1994
Ref Circuit Notebook June 1996 For Selectable Gain

Multi-Channel Infrared Remote Control 15105941-2  May 1994
Brian Roberts Errata: March 1995

200W/350W Mosfet Amplifier Module                 June 1994
Anthony Holton C&ES kit

The Stoney Broke Loudspeaker System               June 1994
Leo Simpson Altronics kit

Inverse RIAA Filter 01105941                      June 1994
Convert Your Phono Inputs To Line Inputs          
Leo Simpson

SmallTalk: Tiny Voice Digitiser For The PC        July 1994
Darren Yates

PreCHAMP 2-Transistor Preamplifier 01107941       July 1994
Darren Yates Altronics K2112, DSE, Jaycar KC5166
PCB AVAILABLE FROM SC

Dual Diversity Tuner 06307941/2             Pt 1  August 1994
For FM Microphones John Clarke     Errata & Pt 2  September 1994

Building A Classic Crystal Set                    September 1994
John Hill Vintage Radio

Talking Headlight Reminder 01109941               October 1994
Darren Yates DSE, Jaycar kits                     20EPC

3-Spot Sinewave Oscillator 01110941               December 1994
Darren Yates

Surround Sound Decoder 02311941             Pt 1  December 1994
Dolby Pro-Logic John Clarke Jaycar kit      Pt 2  January 1995

Portable Stereo Microphone Preamplifier 01111941  January 1995
Darren Yates

50W Per Channel Stereo Amplifier Module 01102951  February 1995
Uses LM3886 Leo Simpson/Bob Flynn
Altronics K5130, DSE, Jaycar kits
Errata: March 1995 Ref Circuit Notebook June 1996
For Bridge Operation

Digital Effects Unit Musicians/Guitar 01301951-2  February 1995
John Clarke Errata: March 1995
Jaycar kit

Wide Range Electrostatic Loudspeakers       Pt 1  February 1995
Rob McKinlay                                Pt 2  March 1995
ER Audio kit                                  Pt 3  April 1995

Subcarrier Decoder ACS For FM Receivers 06103951  March 1995
John Clarke Jaycar kit

Building A Tube Sub-Woofer                        March 1995
Julian Edgar Car Sound

Stereo Amplifier 01102951/01103951-4        Pt 1  March 1995
50W/Channel Uses LM3886                     Pt 2  April 1995
Leo Simpson/Bob Flynn Altronics, Jaycar kits

Balanced Mic Preamplifier/Line Mixer PED5531      April 1995
Leo Simpson Altronics 5531
See Circuit Notebook May 1995 For Phantom Power

FM Radio Trainer 06303951                   Pt 1  April 1995
John Clarke DSE kit                         Pt 2  May 1995

Mains Music Transmitter & Receiver                May 1995
Jeff Monegal Errata: July 1995
Kit no longer available

Guitar Headphone Amplifier 01305951               May 1995
John Clarke Altronics, DSE, Jaycar kits

1W Audio Amplifier Trainer 01306951               June 1995
John Clarke DSE kit

Vifa JV60 2-Way Bass Reflex Loudspeaker System    August 1995
Leo Simpson Jaycar kit

A Gain Controlled Microphone Preamp 01207951      August 1995
John Clarke Altronics, Jaycar kits

Audio Lab: A PC-Controlled Audio Test       Pt 1  August 1995
Instrument Roger Kent RSK kit               Pt 2  September 1995

Mighty-Mite Powered Loudspeaker 01305951          August 1995
John Clarke

JV100 3-Way Bass Reflex Loudspeakers              October 1995
Leo Simpson Jaycar kit

Surround Sound Decoder Mk2 01409951-2-3-4-5 Pt 1  November 1995
Dolby Pro Logic John Clarke Jaycar kit      Pt 2  December 1995
Errata: January/February 1996
Ref Ask SC June 1996 For Remote Control

Five Band Equaliser 01309951                      December 1995
John Clarke Altronics K5305, Jaycar kits
Errata: January 1996

Subwoofer Controller With Signal Limiting &       December 1995
Automatic Power-On Altronics K5562
Errata: February 1996

Surround Sound Mixer & Decoder 02302961-2-3 Pt 1  January 1996
For Camcorders John Clarke                  Pt 2  February 1996

Automatic Level Control For PA Systems 01303961   March 1996
John Clarke No kit - main IC from Farnell
See Ask SC June 1996 For Loudspeaker Protection

20ms Delay For Surround Sound Decoders 01401961   March 1996
John Clarke Altronics K5595, Jaycar kit

Plastic Power Amplifier Module 01104961           April 1996
Leo Simpson/Bob Flynn DSE kit, Jaycar KC5201
Errata: November 1996
See March 2000 for refined version

Replacement Module For The SL486 & MV601 Remote   April 1996
Control Receiver ICs 09103961 Rick Walters
Ref: IR RC For Model Railroads, SC April-May 92;
Remote Volume Control For HiFi, SC May-June 93;
Stereo Preamplifier With IR RC, SC Sept-Nov 93

Fibre Optic Two-Way Intercom                      May 1996
Leo Simpson DIY/Ozitronics kit

High Performance Stereo Simulator 01406961        June 1996
John Clarke Altronics K5950
Errata: September 1996

Three-Band Parametric Equaliser 01107961          July 1996
Bob Flynn Altronics K5330, Jaycar

Rugged Mosfet Audio Amplifier Module              August 1996
Leo Simpson Altronics kit

Portable Masthead Amplifier For TV & FM           August 1996
Branko Justic Oatley Electronics kit

Public Address Loudspeakers 01310961-2            September 1996
John Clarke

Infrared Stereo Headphone Link
Transmitter 01109961                        Pt 1  September 1996
Receiver 01109962-3                         Pt 2  October 1996
Rick Walters

600W DC-DC Converter 05308961               Pt 1  October 1996
For Car Hifi Systems John Clarke Jaycar kit Pt 2  November 1996

Multimedia Sound System 01110961
Pt 1: Bridged Amplifiers On A PC Card: TDA1519A   October 1996
Pt 2: Loudspeakers                                November 1996
Rick Walters Altronics, Jaycar kits
Errata: February 1997, July 1997

8-Channel Stereo Mixer 01210961-2           Pt 1  November 1996
John Clarke Jaycar kit                      Pt 2  December 1996

Active Filter For CW Reception 06112961           December 1996
Leon Williams

Plastic Power 175W PA Amplifier 01103971          March 1997
Ross Tester

Universal Loudspeaker Protector 01104971          April 1997
Leo Simpson/Bob Flynn DSE, Jaycar kits
Errata: June 1997

InfraRed Remote Volume Control 1 to 8 Channels    July 1997
Leo Simpson Oatley Electronics kit

Simple Waveform Generator 01307971                July 1997
John Clarke Jaycar kit

The Bass Barrel Subwoofer                         August 1997
Julian Edgar Altronics kit

500W Audio Power Amplifier 01208971         Pt 1  August 1997
Leo Simpson/Bob Flynn                       Pt 2  September 1997
Altronics, DSE, Jaycar kits                 Pt 3  October 1997
Feedback: March 1998

Loudness Control For Car Hifi Systems 01111971    December 1997
Rick Walters Jaycar kit

Build Your Own Lightshow 01112971-2         Pt 1  January 1998
Leo Simpson/Rick Walters                    Pt 2  February 1998
Altronics, Jaycar kits

A Simple Regenerative Receiver                    January 1998
John Hill - Vintage Radio

Sustain Unit For Electric Guitars 01302981        March 1998
John Clarke Altronics, Jaycar kits
Errata: July 1999

5-Element FM Antenna                              March 1998
Leo Simpson/Bob Flynn      

The Roadies' Friend Cable Tester                  June 1998
Paul Hoad Hoad Electronics kit

15W/Channel Stereo Amplifier SC01207981     Pt 1  July 1998
Class-A Leo Simpson Altronics K5109         Pt 2  August 1998

The Opus One Loudspeaker System                   August 1998
Leo Simpson Altronics kit
Errata: October 1998

A Waa-Waa Pedal For Your Guitar 01307981          September 1998
John Clarke Altronics, DSE, Jaycar kits

Versatile Electronic Guitar Limiter 01308981      October 1998
John Clarke Jaycar kit

Lab Quality AC Millivoltmeter 01510981-2    Pt 1  October 1998
John Clarke                                 Pt 2  November 1998

FM Transmitter For Musicians                      November 1998
Branko Justic Oatley Electronics kit

Audio Signal Generator 01402991-2           Pt 1  February 1999
John Clarke Altronics K2548, Jaycar         Pt 2  March 1999
Errata: May 1999, August 2000
 
Audio Compressor 01303991                         March 1999
John Clarke Altronics K5525

Bass Cube Subwoofer                               April 1999
Julian Edgar Errata: May 1999

Foldback Loudspeaker System For Musicians         November 1999
John Clarke

Spring Reverberation Module 01402000              January 2000
John Clarke Jaycar kit

Ultra-LD 100W Stereo Amplifier 01103001     Pt 1  March 2000
In A Computer Case Leo Simpson              Pt 2  May 2000
Altronics K5150, Jaycar
See Plastic Power April 1996 Errata: August 2000

Aura Interactor Amplifier                         March 2000
Leo Simpson

PC-Controlled VHF FM Receiver                     June 2000
Mark Roberts Softmark kit
Errata: September 2000, March 2001

CD Compressor 01106001                            June 2000
John Clarke Altronics K5580, Jaycar KC5291

Theremin 01207001                                 August 2000
John Clarke Altronics, DSE K3015, Jaycar KC5295

Loudspeaker Protector & Fan Controller 01108001   August 2000
Peter Smith/Leo Simpson Altronics, Jaycar kits
Errata: September 2000

Guitar Jammer 01110001                            October 2000
Leo Simpson/Peter Smith Altronics K5536, Jaycar

Installing A Free-Air Subwoofer In Your Car       October 2000
Julian Edgar

2-Channel Guitar Preamplifier 01111001      Pt 1  November 2000
Altronics K5340, Jaycar kits
Digital Reverberation Unit 01112001         Pt 2  December 2000
Combining Both Units In A Metal Rack Case   Pt 3  January 2001
John Clarke
Errata: January 2001, September 2002

LP Doctor 01101011                          Pt 1  January 2001
John Clarke/Leo Simpson DSE K5425           Pt 2  February 2001
Errata: March 2001, April 2001, June 2001,
January 2002, June 2002

Bass Blazer Sub Woofer Display 01102011-2-3       February 2001
Rick Walters Altronics K5410, Jaycar
Errata: April 2001

2-Metre Elevated Groundplane Antenna              February 2001
Philip Watson

MIDI-Mate: A MIDI Interface For PCs 01201011      February 2001
Jim Rowe Jaycar kit Errata: February 2003

Simple MIDI Expansion Box 01103011                March 2001
Jim Rowe

Guitar Tremolo Unit For Musicians 01104011        April 2001
John Clarke DSE, Jaycar kits

Powerful 12V Mini Stereo Amplifier 01105011       May 2001
John Clarke Altronics K5100

Direct Injection DI Box For Musicians 011080110   August 2001
John Clarke Altronics, DSE, Jaycar kits
Errata: September 2001

200 Watt Mosfet Amplifier Module                  August 2001
Leo Simpson Altronics kit

MP3 Jukebox 07109011                        Pt 1  September 2001
Peter Smith Altronics kit                   Pt 2  October 2001
FAQs January, April 2002 Errata: December 2002

Personal Noise Source 01109011                    September 2001
For Tinnitus Sufferers John Clarke
Altronics, DSE, Jaycar KC5319

The Sooper Snooper                                September 2001
Ross Tester Oatley Electronics kit
Errata: June 2002

Short Message Recorder & Player 01111011          November 2001
Leon Williams

Audio/Video Distribution Amplifier 02111011       November 2001
Jim Rowe Jaycar KC5320
Errata: December 2001, April 2002, June 2002

Ultra-LD 100W Stereo Amplifier 01112011-5   Pt 1  November 2001
Greg Swain/John Clarke/Leo Simpson          Pt 2  December 2001
Altronics K5155                             Pt 3  January 2002
Errata: April 2007
Remote Volume Control: see July 2002

2.4GHz High Power A-V Link                        February 2002
Ross Tester Oatley Electronics kit

VAF's 2-Way Tower Speakers                        February 2002
Leo Simpson

Mighty Midget Class-H Audio Amplifier 01203021    March 2002
Rick Walters
Altronics K5140, DSE K5401, Jaycar KC5329
Errata: May 2002, June 2002

RIAA Preamplifier 01303021                        March 2002
For Magnetic Cartridges Leo Simpson/Ross Tester
Errata: March 2003

IR Remote Volume Control 01103021-3         Pt 1  March 2002
John Clarke Altronics kit                   Pt 2  April 2002
Errata: June 2002

Stereo Headphone Amplifier 01105021               May 2002
Ross Tester Altronics K5506, DSE, Jaycar KC5335

Remote Volume Control For Stereo Amps 15106021    June 2002
John Clarke Altronics K5026

Remote Volume Control 01107021, 15106022-3        July 2002
For The Ultra-LD 2 x 100W Stereo Amplifier
John Clarke/Greg Swain

Wi-Fi: 21st Century Cat's Whiskers                November 2002
Stan Swan

SC480 50W Amplifier Module 01201031-2-3     Pt 1  January 2003
Leo Simpson/Peter Smith                     Pt 2  February 2003
Altronics K5120/K5122, DSE K3431/K3432,
Jaycar KC5345/KC5346/KC5347 Errata: Dec 2005

3-Way Active Crossover 01101031                   January 2003
Mick Gergos Errata: May 2004
Jaycar KC5343 (no longer available)
PCB from Elliott Sound Products sound.au.com

PortaPAL 01103031-3                         Pt 1  February 2003
Portable Public Address Amplifier           Pt 2  March 2003
Leo Simpson/John Clarke Altronics K5360
Errata: March 2003, May 2003, December 2004
(EPE PCB562-565)

12V SLA Battery Float Charger 01103034            March 2003
To Suit PortaPAL
Errata: April 2003 Altronics K1695

Little Dynamite Subwoofer                         March 2003
Julian Edgar                                      EPC2

WidgyBox: Guitar Distortion Box 01105031          May 2003
Peter Smith Altronics K5541, Jaycar KC5353
(EPE PCB573)

Big Blaster Subwoofer                             May 2003
Julian Edgar

Fitting A Wireless Microphone To The PortaPAL     August 2003
Ross Tester

The JV80 Loudspeaker System                       October 2003
Leo Simpson Jaycar kit

12AX7 Valve Audio Preamplifier 01111031-2         November 2003
Jim Rowe Jaycar KC5370/KC5371
PCB AVAILABLE FROM SC

Lapel Microphone Adaptor For PAs 01101041-2       January 2004
John Clarke (EPE PCB593)
See Circuit Notebook Feb 2004 for Phantom Supply

2.4GHz Audio/Video Link                           January 2004
Ross Tester Oatley Electronics kit

Studio 350 Power Amplifier Module 01102041  Pt 1  January 2004
Leo Simpson/Peter Smith                     Pt 2  February 2004
Altronics K5185, Jaycar KC5372 (EPE PCB591)
Errata: February 2004, April 2004, April 2006

Using The Valve Preamp In A Hifi System           February 2004
Refer project November 2003

Speaker Sound Level Meter 01104041                April 2004
John Clarke Altronics K2552 DSE K5624 (EPE PCB577)

Regulated 125W HV Power Supply For Valve          July 2004
Amplifiers Modified PC Power Supply
Leonid Lerner DSE K3438

VAF's New DC-X Generation IV Loudspeaker System   August 2004
Philip Vafiadis\Simon Wilde

Balanced Microphone Preamplifier 01108041         August 2004
John Clarke DSE K7219 PCB AVAILABLE FROM SC
Errata: January 2005 (EPE PCB599)

Schoolies Amp 20W Amplifier Module 01112041       December 2004
Peter Smith Altronics K5116, DSE K3405,
Jaycar KC5403 (EPE PCB613/614)

VAF DC-7 Generation 4 Kit Speakers                January 2005
Philip Vafiadis\Simon Wilde

TwinTen Stereo Amplifier 01102051                 February 2005
Jim Rowe\Peter Smith (EPE PCB626)

Shielded Loop Antenna For DX AM Reception         March 2005
David Whitby Gless Audio kit glesstron@msn.com

MIDI Theremin 01204051-2                    Pt 1  April 2005
John Clarke Jaycar KC5410                   Pt 2  May 2005

Bass Extender 01104051                            April 2005
Rick Walters Altronics K5561, DSE K5592,
Jaycar KC5411 Errata: July 2005 (EPE PCB618)

45-Second Voice Recorder Module 01105051          May 2005
Jim Rowe Jaycar KC5412
See enhanced version December 2007

Wireless Microphone/Audio Link                    May 2005
Ross Tester Oatley K222

Mudlark A205 Valve Stereo Amplifier         Pt 1  August 2005
David Whitby Gless Audio kit                Pt 2  September 2005

Salvage It! Scrounging & Using Shortwave Radios   September 2005

Studio Series Stereo Preamplifier 01109051        October 2005
Peter Smith Altronics K5502 (EPE PCB658)
Errata: February 2006

Power Supply 01109052 (EPE PCB659)                October 2005
For the Studio Series Stereo Preamplifier
Peter Smith Altronics K5501, Jaycar KC5418

Stereo Headphone Amplifier 01111051               November 2005
Studio Series Peter Smith
Altronics K5503 Jaycar KC5417 (EPE PCB662)

Delta XL-02 Tower Loudspeaker System              November 2005
Leo Simpson www.kitaudio.com

MIDI Drum Kit 01211051-2 (EPE PCB653/654/657)                 
John Clarke Introduction                    Pt 1  November 2005
Putting It Together                         Pt 2  December 2005
Building The Sensors And Stand              Pt 3  January 2006
Installing And Running The Software         Pt 4  February 2006

The Ultimate Jukebox
Ross Tester/Tony Murphy Introduction        Pt 1  December 2005   
Building The Cabinet                        Pt 2  January 2006         
Building & Installing The Electronics       Pt 3  February 2006

Studio Series Remote Control Module 01104061      April 2006
Peter Smith Altronics K5504 Errata: April 2007
PCB AVAILABLE FROM SC (EPE PCB663)

Passive DI Box For Musicians                      May 2006
No PCB John Clarke

Direct Injection From A 70V/100V Speaker Line     May 2006
No PCB Ross Tester

Boost Your ZigBee Range For A Few Bucks           May 2006
Stan Swan

Digital Audio Converter 01106061                  June 2006
Two-Way SPDIF/Toslink Jim Rowe Jaycar KC5425

Starship Enterprise Door Sounder 01206061         June 2006
Jim Rowe Jaycar KC5423

Mini Theremin 01207061                      Pt 1  July 2006
John Clarke Jaycar KC5426                   Pt 2  August 2006
Errata: December 2006 (EPE PCB670)

Studio Series Stereo Preamplifier:                July 2006
Installing The Modules In A Case
Peter Smith Altronics K5500/K5500S

Tingle Terminator:                                July 2006
Stop Zaps From Double-Insulated Equipment
John Clarke

Magnetic Cartridge RIAA Preamplifier 01108061     August 2006
John Clarke Altronics K5513, Jaycar KC5433
Errata: December 2007 PCB AVAILABLE FROM SC
See Modification in Circuit Notebook, March 2007

Ultrasonic Eavesdropper 01208061                  August 2006
Jim Rowe Errata: October 2006
PCB AVAILABLE FROM SC (EPE PCB683)

Turn An Old XBOX Into A $200 Multimedia Player    September 2006
Julian Edgar

A Reformer For Electrolytic Capacitors            October 2006
Rodney Champness

M6 Bass Reflex Kit Loudspeakers                   November 2006
Aaron Waplington theloudspeakerkit.com

Remote Volume Control/Preamp 01102071-2-3   Pt 1  February 2007
Peter Smith (EPE PCB714-716)                Pt 2  March 2007

How To Build A Super Crystal Set                  April 2007
Rodney Champness

Stereo VU/Peak Meter 01205071-2                   May 2007
John Clarke Jaycar KC5447 (EPE PCB702/703)
Errata: June 2007

20W Class-A Amplifier Module
Peter Smith/Leo Simpson/Greg Swain      
Introduction 01105071-3                     Pt 1  May 2007
Construction & Power Supply                 Pt 2  June 2007
Speaker Protection & Muting 01207071        Pt 3  July 2007
Preamp & Remote Volume Control 01208071     Pt 4  August 2007
Chassis Assembly, Wiring & Adjustment       Pt 5  September 2007
Altronics K5124, K5125, K5126, K5127, K5128
Errata: Sept 2007 (EPE PCBS 687/689/693/696)
See also April 2011 re transformer buzz

Versatile 4-Channel Guitar Mixer 01106071         June 2007
Jim Rowe Altronics K5353, Jaycar KC5448
(EPE PCB704) Errata: November 2007

PICAXE Plays Music! VMUSIC Driver                 July 2007
Clive Seager www.rev-ed.co.uk

Speaker Protection & Muting Module 01207071       July 2007
Designed For The Class-A Amplifier
Peter Smith/Greg Swain Jaycar KC5450
PCB AVAILABLE FROM SC
Errata: September 2007

Subwoofer Controller 01108071                     August 2007
Jim Rowe Jaycar KC5452
Errata: Dec 2007, Dec 2008

Active AM Loop Antenna & Amplifier                October 2007
Branko Justic/Ross Tester Oatley K256
(EPE PCB813/814)

Playback Adapter For CD-ROM Drives 07112071 Pt 1  November 2007
Mauro Grassi                     Errata and Pt 2  December 2007
Jaycar KC5459 (EPE PCB740)
See also Circuit Notebook, July 2008

Signature Series Kit Loudspeaker System           December 2007
Russell Storey/Leo Simpson
Kits from Wagner Electronics www.wagner.net.au

Infrared Audio Headphone Link For TV 01112071-2   December 2007
Jim Rowe (EPE PCB708/709)

Enhanced 45-Second Voice Recorder Module EC8271   December 2007
Jim Rowe Jaycar exclusive KC5454 (EPE PCB797)
Refer project May 2005 Errata: February 2008
See Circuit Notebook February 2008 & August 2010

Build The Aussie-3 Valve AM Radio                 January 2008
Keith Walters

2-Way Stereo Headphone Adaptor 01104081           April 2008
Mauro Grassi (EPE PCB748)
See also Circuit Notebook June 2008

Balanced/Unbalanced Converter 01106081            June 2008
John Clarke Altronics K5522 Jaycar KC5468
(EPE PCB770)

DSP Musicolour Lightshow 10107081-2         Pt 1  June 2008
Mauro Grassi                       Errata & Pt 2  July 2008
Testing, Troubleshooting, Firmware          Pt 3  August 2008
Remote Control 10107083            Errata & Pt 4  September 2008
Altronics K5803 (EPE PCB759/760/764)

Microphone Preamp For PCs & MP3 Players 01107081  July 2008
John Clarke (EPE PCB780)

Bridge Adaptor 01106081-2                         July 2008
For Stereo Power Amplifiers Leo Simpson
Altronics K5566 Jaycar KC5469 (EPE PCB770a)

Ultra-LD Mk2 200W Power Amplifier 01108081  Pt 1  August 2008        
Assembly & Power Supply 01109081            Pt 2  September 2008
Leo Simpson/John Clarke
Altronics K5151, Jaycar KC5470 KC5471
(EPE PCB767/768) Errata: September 2008          

AM MW Broadcast Bank Portable Loop Antenna        January 2009
Stan Swan

New Improved Theremin Mk.2 01203091               March 2009
John Clarke Jaycar KC5475 (EPE PCB795)
Errata: April 2009

Microcontrollers Can Be A Snap! Stan Swan         March 2009
Using The PICAXE-08M In A Snap Connector Kitset

Multi-Function Active Filter Module 01107091      July 2009
John Clarke Jaycar KC5480 (EPE PCB812)
Errata: August 2009

SD Card Music & Speech Recorder/Player 01108091   August 2009
Mauro Grassi Altronics K5545 Jaycar KC5481
Errata: September 2009/October 2009/December 2009/
January 2012 (EPE PCB815)

Stereo DAC Digital-To-Analog Converter      Pt 1  September 2009
01109091-2-3 & 01109052 Nicholas Vinen      Pt 2  October 2009
Altronics K5332 Jaycar KC5487 (EPE PCB820-3)Pt 3  November 2009
Errata: Dec 2009, Feb 2010, June 2010, Dec 2011

Dead Simple Masthead Amplifier                    November 2009
Branko Justic/Ross Tester Oatley K274

Balanced Output Board For The Stereo DAC 01101101 January 2010
Nicholas Vinen Errata: February 2010
PCB AVAILABLE FROM SC (EPE PCB833)

12V Mini Stereo Amplifier 01104101                May 2010
Nicholas Vinen Altronics K5136, Jaycar KC5495
(EPE PCB843)

Mini Microphone Preamplifier 01109101             September 2010
Nicholas Vinen Altronics K5514
Errata: November 2010 (EPE PCB859)

Hearing Loop Receiver 01209101                    September 2010
John Clarke Errata: October 2010
Altronics K5547, Jaycar KC5497
PCB AVAILABLE FROM SC (EPE PCB865)

DAB+/FM Tuner 01110101-2                    Pt 1  October 2010
Mauro Grassi Jaycar KC5491                  Pt 2  November 2010
Errata: Nov 2010, Dec 2010, May 2011        Pt 3  December 2010
Ask SC: March 2011 (regulator runs too hot)

Two TOSLINK-S/PDIF Audio Converters 01210101-2    October 2010
Nicholas Vinen Errata: December 2011
Altronics K5174/K5175
PCBS AVAILABLE FROM SC (EPE PCB868/869)

Hearing Loop Tester/Level Meter 01111101    Pt 1  November 2010
John Clarke PCB AVAILABLE FROM SC           Pt 2  December 2010

Hearing Loop Signal Conditioner 01101111          January 2011
John Clarke PCB AVAILABLE FROM SC
Errata: January 2012

Neck Loop Driver Amplifier 01209101-2             March 2011
(Microphone To Neck Loop Coupler For Hearing Aids)
John Clarke PCB AVAILABLE FROM SC

Portable Stereo Headphone Amplifier 01104111      April 2011
Nicholas Vinen Altronics K5508
PCB AVAILABLE FROM SC

Fixing Transformer Buzz In The Class-A Amplifier  April 2011
Leo Simpson
Ref project May-September 2007

SportSync Audio Delay Module 01105111             May 2011
Nicholas Vinen
PCB+MICRO AVAILABLE FROM SC

Ultra-LD Mk3 200W Amplifier Module 01107111 Pt 1  July 2011
Nicholas Vinen                              Pt 2  August 2011
Power Supply 01109111                       Pt 3  September 2011
Errata: June 2012 PCBS AVAILABLE FROM SC

Voice-Activated Relay (VOX) 01207111              July 2011
John Clarke PCB AVAILABLE FROM SC
Altronics K5542

Electronic Stethoscope 01108111                   August 2011
John Clarke PCB AVAILABLE FROM SC

Ultra-LD Mk2 Amplifier Upgrade To Mk3 01209111    September 2011
Nicholas Vinen PCB AVAILABLE FROM SC

HiFi Stereo Headphone Amplifier 01309111    Pt 1  September 2011
Nicholas Vinen PCB AVAILABLE FROM SC        Pt 2  October 2011

Loudspeaker Protector 01207071                    October 2011
Leo Simpson PCB AVAILABLE FROM SC

Ultra-LD Stereo Preamplifier 01111111-3     Pt 1  November 2011
And Input Selector (John Clarke/Greg Swain) Pt 2  December 2011
PCB+MICRO AVAILABLE FROM SC

Digital Audio Delay 01212111                      December 2011
Nicholas Vinen Errata: January 2012 Jaycar KC5506
PCB\FRONT&REAR PANELS\MICRO AVAILABLE FROM SC

Frequency Response Test Unit 01102941 & 01107941  December 2011
(Loudspeaker Measurement) Allan Linton-Smith
refer projects Champ Feb 94 & PreChamp July 94

3-Input Stereo Audio Switcher 01101121-2          January 2012
John Clarke/Greg Swain PCB AVAILABLE FROM SC

Stereo Audio Compressor 01201121                  January 2012
John Clarke Altronics K5526 Jaycar KC5507
PCB + FRONT & REAR PANELS AVAILABLE FROM SC

Playing USB-Stick & SD/MMC Card Music             January 2012
Without A PC (Uses Tenda Modules) Ross Tester

Crystal DAC 01102121                              February 2012
Nicholas Vinen Errata: June 2012, July 2012
PCB AVAILABLE FROM SC

Ultra-LD Mk3 135W/Ch Stereo Amplifier       Pt 1  March 2012
Greg Swain/Nicholas Vinen                   Pt 2  April 2012
Altronics K#TBA                             Pt 3  May 2012

Mix-It! Four Channel Audio Mixer 01106121         June 2012
Nicholas Vinen Errata: August 2012
PCB AVAILABLE FROM SC

Classic-D: Class-D Amplifier 01108121-2     Pt 1  November 2012
John Clarke Power Supply 01109111           Pt 2  December 2012
Errata: December 2012 PCBS AVAILABLE FROM SC
Altronics K5181/K5182 Jaycar KC5514/5515

----------------------------------------------------------------

02 TV/VIDEO

High Performance Bow-Tie UHF Antenna SC210188     January 1988
Leo Simpson/Bob Flynn

Masthead Amplifier For TV & FM SC0210788          July 1988
Branko Justic

Simple Stub Filter To Eliminate TV Interference   May 1989
Amateur Radio - Garry Cratt

Gladesville GaAsFet Amplifier For Amateur TV      October 1989
"Big Julie" Kentwell

Remote Control Extender For VCRs SC15108901       September 1990
John Clarke/Greg Swain Errata: March 1991

Corner Reflector Antenna For UHF TV SC02106911    June 1991
Bob Flynn/Leo Simpson

Masthead Amplifier For TV & FM SC02107911         August 1991
John Clarke/Greg Swain

Colour TV Pattern Generator SC02210911      Pt 1  November 1991
John Clarke Altronics, DSE, Jaycar kits     Pt 2  December 1991
See Replacement Circuit For TEA2000: March 1997
    
TV Transmitter For Video Recorders SC02212911     December 1991
John Clarke

TV Transmitter For VHF VCRs SC02212911/SC02204921 March 1992
John Clarke Errata: May 1992

Video Switcher For Camcorders & VCRs SC02206921   June 1992
John Clarke Errata: July, September 1992

Low-Cost Audio Mixer For Camcorders 01112921      March 1993
Darren Yates Errata: April 1993

Low-Cost Video Fader 02107931                     August 1993
Darren Yates DSE kit Errata: September 1993
           
Intelligent IR Remote Controller                  March 1994
Ben Douchkov Benetron kit

Remote Control Extender For VCRs 15303941         April 1994
John Clarke Altronics, Jaycar kits
Errata: June 1994

Multi-Channel Infrared Remote Control 15105942    May 1994
Brian Roberts Errata: March 1995

4-Bay Bow-Tie UHF Antenna                         July 1994
Leo Simpson/Bob Flynn Errata: Sept 1994

Surround Sound Decoder 02311941             Pt 1  December 1994
Dolby Pro-Logic John Clarke Jaycar kit      Pt 2  January 1995

Satellite TV Receiver 02305951              Pt 1  May 1995
Garry Cratt/John Clarke                     Pt 2  June 1995
Av-Comm kit                                 Pt 3  July 1995

Low-Cost Video Security System                    June 1995
Leo Simpson Oatley Electronics kit

Surround Sound Decoder Mk2 01409951-2-3-4-5 Pt 1  November 1995
Dolby Pro Logic John Clarke Jaycar kit      Pt 2  December 1995
Errata: January/February 1996
Ref Ask SC June 1996 For Remote Control

Surround Sound Mixer & Decoder 02302961-2-3 Pt 1  January 1996
John Clarke                                 Pt 2  February 1996

High Performance Stereo Simulator 01406961        June 1996
John Clarke Altronics kit
Errata: September 1996

Remote Control Extender For VCRs 15107961         July 1996
Rick Walters Jaycar KC5209 Errata: Sept 2002

Portable Masthead Amplifier For TV & FM           August 1996
Branko Justic Oatley Electronics kit

Video Transmitter & Video Receiver 02306961-4     October 1996
Send Video Signals Over Twisted Pair Cable        
John Clarke Altronics, Jaycar kits
Errata: December 1996

RGB-To-PAL Encoder 02302971                       March 1997
Replacement For The TV Pattern Generator
John Clarke

Build A TV Picture-In-Picture PIP Unit 02302971   April 1997
John Clarke Oatley Electronics

Teletext Decoder For Your PC                      May 1997
Chris Schach/Braden Phillips Current Dynamics kit

NTSC-To-PAL Converter 02303971                    May 1997
John Clarke Kit no longer available -
contact Av-Comm for fully built unit

Colour TV Pattern Generator 02305971        Pt 1  June 1997
John Clarke                                 Pt 2  July 1997
Altronics K2715, DSE K7380, Jaycar KC5224
Errata: October 1997

Video Security System For Your Home               September 1997
Branko Justic Oatley Electronics kit

Pan Your CCD Video Camera By Remote Control       January 1998
Branko Justic Oatley Electronics kit

Audio-Video Transmitter 02405991                  July 1999
John Clarke Altronics K5865, Jaycar KC5272
Errata: September 1999, February 2001

Home Satellite TV System                          July 2000
Ross Tester/Garry Cratt
Av-Comm kit - no longer available

I Spy With My Little Eye Cavity Camera            October 2000
Ross Tester Oatley Electronics

2-Metre Elevated Groundplane Antenna              February 2001
Philip Watson

Dr Video: Video Stabiliser 02104011               April 2001
Jim Rowe Jaycar kit

L'il Snooper: Camera Switcher 02106011            June 2001
Jim Rowe Altronics K5842, Jaycar

VideoSCope: Video Microscope                      October 2001
Peter Rosenthal/Ross Tester

Audio/Video Distribution Amplifier 02111011       November 2001
Jim Rowe Jaycar KC5320
Errata: December 2001, April 2002, June 2002

2.4GHz High Power A-V Link                        February 2002
Ross Tester Oatley Electronics kit

Video-Audio Booster For Home Theatre 02104031     April 2003
Jim Rowe Jaycar KC5350/KC5351 (EPE PCB558)

2.4GHz Audio/Video Link                           January 2004
Ross Tester Oatley Electronics kit

Component Video To RGB Converter 02105041         May 2004
Jim Rowe Jaycar KC5388 See also
Circuit Notebook August 2004 for RGB Flag Output;
Circuit Notebook August 2005 for Vertical Sync

Dr Video Mk.2 Video Stabiliser 02106041           June 2004
Jim Rowe Jaycar KC5390 See also
Circuit Notebook July 2004 for NTSC mod;
Circuit Notebook July 2005 for improved stability

Video Enhancer & Y/C Separator 02108041           August 2004
Jim Rowe Jaycar KC5394

RGB To Component Video Converter 02110041         October 2004
Jim Rowe Jaycar KC5398 Errata: February 2005
(EPE PCB596) See also Circuit Notebook July 2005

Install Your Own In-Car Video                     April 2005
Gary Rollans Components from Jaycar

Video Reading Aid 02110051                        October 2005
Jim Rowe (EPE PCB624)

4-Channel A/V Selector 02104061                   April 2006
Jim Rowe (EPE PCB676)

Pocket A/V Test Pattern Generator                 June 2006
Mick Gergos Altronics K2725

2.4GHz Wireless A/V Link                          June 2006
Ross Tester Oatley K229  

S-Video To Composite Video Converter 02109061     September 2006
Jim Rowe (EPE PCB684)

Infrared Remote Control Extender 02110061         October 2006
John Clarke Jaycar KC5432
See also Circuit Notebook July 2010

Infrared Audio Headphone Link For TV 01112071-2   December 2007
Jim Rowe (EPE PCB708/709)

Speed Controller For Film Projectors 13104111     April 2011
John Clarke PCB+MICRO AVAILABLE FROM SC

----------------------------------------------------------------

03 SECURITY/BURGLAR ALARMS ETC

Passive Infrared Movement Detector                December 1987
Branko Justic Errata: June 1988

Protector Car Burglar Alarm SC310188              February 1988
John Clarke Errata: August 1988

Door Minder SC0320188                             February 1988
Leo Simpson/John Clarke
See also Circuit Notebook April 1989

UHF Remote Alarm Switch SC031288                  March 1988
For Car Burglar Alarms John Clarke
Errata: June 88, July 88, Sept 88, Oct 88
See also Kit Clinic: January 1989

Ultrasonic Car Burglar Alarm                      May 1988
Branko Justic     

Automatic Light Controller SC0310688              June 1988
Branko Justic

Fuel Cut-Off Solenoid To Thief-Proof Your Car     July 1988
Greg Swain

UHF Remote Transmitter SC0312882/SC03107881       August 1988
AKA Remote Alert Doorbell John Clarke/Greg Swain
Errata: September, October 1988

LED-Light House Number SC0310988                  October 1988
John Clarke/Leo Simpson

Compact Ultrasonic Car Burglar Alarm              July 1989
Greg Swain Errata: October 1989                   20EPC

Alarm-Triggered Telephone Dialler                 September 1989
Greg Swain DSE kit Errata: March 1990

Radfax Decoder SC0311189                          November 1989
John Clarke Errata: June 1990 Jaycar kit

UHF Remote Control Car Alarm Switch               December 1989
Greg Swain DSE kit Errata: January 1994

Multi-Sector Home Burglar Alarm                   June 1990
Greg Swain DSE kit

Burglar Alarm Keypad & Combination Lock           July 1990
Greg Swain DSE kit

Low Cost Siren For Burglar Alarms                 October 1990
Leo Simpson   

Versatile 4-Digit Combination Lock                December 1990     
Gary Ioppolo

Ultrasonic Switch For Mains Appliances            September 1991
Jeff Monegal

Flashing Alarm Light For Cars                     November 1991
Syd McKitrick DSE kit                             20EPC
           
Infrared Light Beam Relay SC03112911              December 1991
Darren Yates Jaycar kit Extender: July 1993
Errata: March 1992, September 1992

Electronic Doorbell SC03106921                    May 1992
Darren Yates

Multi-Sector Burglar Alarm                  Pt 1  September 1992
Mike Zenere                                 Pt 2  October 1992

Infrared Night Viewer                             November 1992
Branko Justic Oatley Electronics kit

Easy-To-Build UHF Remote Switch                   December 1992
Oatley Electronics kit Greg Swain                 20EPC

Alarm-Triggered Security Camera 03103931-2        March 1993
Tony Nixon

Woofer Stopper: Dog Silencer 03105931             May 1993
Darren Yates Errata: June 1993

Remote Control For Woofer Stopper 03105932        June 1993
Darren Yates Oatley Electronics kit

Light Beam Relay Extender 03106931                July 1993
Darren Yates

Image Intensified Night Viewer                    September 1994
Leo Simpson Oatley Electronics kit

UHF Radio Alarm Pager                             November 1994
Branko Justic Oatley Electronics kit

Easy-To-Build Car Burglar Alarm                   December 1994
Bernie Gilchrist DSE kit

Dual Channel UHF Remote Control                   January 1995
Bernie Gilchrist DSE kit

IR Illuminator For Cameras & Night Viewers        March 1995
Branko Justic Oatley Electronics kit

Low-Cost Video Security System                    June 1995
Leo Simpson Oatley Electronics kit

Reliable Door Minder 03107951                     July 1995
Rick Walters Jaycar kit

6-12V Alarm Screamer Module                       August 1995
DIY Electronics kit

Keypad Combination Lock                           September 1995
Jeff Monegal Oatley Electronics kit

Low-Cost PIR Movement Detector                    November 1995
Conrad Marder Oatley Electronics kit

Magnetic Card Reader & Display                    January 1996
Mike Zenere kit from designer

Fit A Kill Switch To Your Smoke Detector          February 1996
Rick Walters BS170 from Farnell

Multi-Tone Dashboard Alarm                        February 1996
Julian Edgar

Woofer Stopper Mk2: Dog Silencer 03102961         February 1996
John Clarke DSE, Jaycar kits
Errata: December 1996

Add Central Locking To Your Car                   October 1997
Leo Simpson Oatley Electronics kit

Smoke Alarm Control Panel 03312961-2-3      Pt 1  January 1997
John Clarke DSE, Jaycar kits                Pt 2  February 1997
Errata: February, April 1997

Video Security System For Your Home               September 1997
Branko Justic Oatley Electronics kit

Infrared Sentry Doorway & Perimeter Minder        April 1999
Branko Justic Oatley Electronics kit

Make Your Burglar Alarm System More Versatile     June 1999
Max Maughan Errata: September 1999

Dog Silencer                                      July 1999
Branko Justic Oatley Electronics kit

RoomGuard: Intruder Alarm 03303001                April 2000
John Clarke Errata: July 2000

Swimming Pool Alarm 03109001                      September 2000
John Clarke Jaycar KC5298

L'il Snooper: Camera Switcher 02106011            June 2001
Jim Rowe Altronics K5842, Jaycar

Body Detector 03110011                            October 2001
Thomas Scarborough     

Motorbike Alarm 05101021                          January 2002
Mick Gergos Errata: February 2002                 EPC2

Raucous Alarm 03102021                            January 2002
Thomas Scarborough Jaycar KC5327

Rolling Code 4-Channel UHF Remote Control         July 2002
Ross Tester Oatley Electronics kit                EPC2
Errata: September 2002 & December 2002
See Circuit Notebook February 2003 For 5th Channel

Driving Light Protector 03109021                  September 2002
Rick Walters Jaycar KC5337

Highly Flexible Keypad Alarm 03104031             April 2003
John Clarke Altronics K1930 DSE K4305
Jaycar KC5352 (EPE PCB552)

Telephone Dialler For Burglar Alarms 03204031     April 2003
Leon Williams Altronics K6230, Jaycar KC5348
(EPE PCB579)

Shut That Mutt: Dog Silencer Mk2                  April 2004
Branko Justic Oatley Electronics K112a
Errata: July 2004

RFID Security Module 03106041                     June 2004
Peter Smith
Altronics K9300, DSE K7215, Jaycar KC5393
Errata: July 2004, August 2006 (EPE PCB628)

Fridge Door Open Alarm 03206041                   June 2004
John Clarke DSE K7216 (EPE PCB587)

The Driveway Sentry                               November 2004
Jim Rowe Jaycar KC5402 - exclusive kit

VoIP Analog Phone Adaptor 03109031                September 2005
Ross Tester Altronics K2780 Errata: May 2006

Remote LED Annunciator 03112051-2                 December 2005
Jim Rowe Jaycar KC5420

Salvage It! Making An Adjustable Loud Screamer    February 2006
Julian Edgar

PC-Controlled Burglar Alarm 03102061-2      Pt 1  February 2006
Optional Keypad 07203061                    Pt 2  March 2006
Trent Jackson Errata: April 2006 (EPE PCB666-668)

2.4GHz Wireless A/V Link                          June 2006
Ross Tester Oatley K229   

Aquarium Temperature Alarm 03109061               September 2006       
Peter Smith

Garage Door Remote Telltale 03101071-2            January 2007
Jim Rowe

Rolling Code Keyless Entry 01510071-2       Pt 1  October 2007
John Clarke Altronics K1940 Jaycar KC5458   Pt 2  November 2007
PCB+MICRO AVAILABLE FROM SC (EPE PCB721/722)
Errata: September 2008

PIC-Controlled Swimming Pool Alarm 03101081       January 2008
John Clarke (EPE PCB762)

Solar-Powered Alarm For Sheds & Boats 03103101    March 2010
John Clarke Altronics K6026 Jaycar KC5494
(EPE PCB837)

RFID Security System                              November 2010
Jeff Monegal Oatley K291

The Driveway Sentry Mk2 03107121                  August 2012
Jim Rowe PCB AVAILABLE FROM SC

Barking Dog Blaster 25108121                      September 2012
John Clarke Altronics K4500
PCB+MICRO AVAILABLE FROM SC
Errata: December 2012

Adding A Wireless Remote Control To The           October 2012
Barking Dog Blaster (Ross Tester)

Nick-Off Cat Deterrent 03110121                   October 2012
AKA "Ted-Off" Greg Swain/Nicholas Vinen
PCB AVAILABLE FROM SC

----------------------------------------------------------------

04 TEST & MEASUREMENT

ETB = "Electronics Test Bench" Project Book

Capacitance Adaptor For Your DMM SC0411287        November 1987
John Clarke/Greg Swain
Ask SC & Errata: March 1988

1GHz Digital Frequency Meter SC04111871-2-3 Pt 1  November 1987
Steve Payor                                 Pt 2  December 1987
See also Circuit Notebook September 1990    Pt 3  January 1988

Dual Tracking +/- 18.5V Power Supply SC041188     January 1988
John Clarke/Leo Simpson Altronics kit             ETB

Low Ohms Adaptor For Multimeters SC41388          February 1988
John Clarke Errata: November 1988

Technilab 301 Function Generator                  March 1988
David Whitby   

pH Meter For Swimming Pools SC42488               April 1988
John Clarke

Optical Tachometer For Aeromodellers SC41688      May 1988
John Clarke/Greg Swain Jaycar kit
Errata: August 1988

RF Sniffer Probe And Preamplifier SC0410688       June 1988
Garry Cratt Amateur Radio
Errata: September 1988, page 80

IHF Tone Burst Source SC41488                     July 1988
Leo Simpson/John Clarke

AC Millivoltmeter SC0410888-1               Pt 1  August 1988
Leo Simpson/Bob Flynn                       Pt 2  September 1988
See also Ask SC September 1996

Universal Power Supply SC04106881                 August 1988
For Op Amp Circuits Leo Simpson                   ETB
Altronics K3215, DSE, Jaycar KC5038
Errata: November 2004

Transistor Beta Tester SC0410289-                 February 1989
Leo Simpson

Experimental Mains Hum Sniffers SC0410589-        July 1989
Steve Payor

Low Capacitance Scope Probe                       August 1989
Herb Friedman

High or Low Level Fluid Detector                  September 1989
Peter Gray

Low Cost Analog Multimeter                        November 1989
Leo Simpson

Two-tone Oscillator For Testing SSB Transmitters  November 1989
Gary Cratt Amateur Radio

Audio Sine/Square Oscillator SC0410190      Pt 1  January 1990
Leo Simpson                                 Pt 2  February 1990

Relative Field Strength Meter SC0410390           April 1990
Ralph Holland

+/- 50V 1.5A Dual Tracking Power Supply SC0410490 April 1990
John Clarke/Greg Swain Errata: October 1990

4-Digit Capacitance Meter SC0410690               May 1990
John Clarke/Greg Swain DSE kit
See January 1991 for LCD readout,
May 2001 for crystal timebase

Load Protector For Power Supplies SC0420490       June 1990
John Clarke/Leo Simpson

Low Cost Dual Power Supply SC0410790              July 1990
John Crichton

Sine/Square Wave Generator SC0410890        Pt 1  July 1990
John Clarke Altronics, DSE kits             Pt 2  August 1990      

3-Digit Counter Module SC0430990                  September 1990
Darren Yates Jaycar kit Errata: October 1990
See also Ask SC April 1994

DC Offset For Digital Multimeters SC0420990       October 1990
John Clarke

LCD Readout For The Digital Capacitance Meter     January 1991
Refer May 1990 project Barry Naujok

Sinewave Oscillator SC04102911                    February 1991
Darren Yates

Transistor Beta Tester Mk2 SC04103911             March 1991
John Clarke

Digital Altimeter SC04108911-3              Pt 1  September 1991
John Clarke                                 Pt 2  October 1991
Errata: January 1992                        Pt 3  November 1991

Magnetic Field Strength Meter SC04211911-2        October 1991
John Clarke

Adjustable Power Supply SC04201921          Pt 1  January 1992
John Clarke Altronics kit                   Pt 2  February 1992
Refer April 1998 for revised & updated version

Differential Input Buffer SC04204921              April 1992
For Oscilloscopes John Clarke     

The Eliminator Power Supply SC04104921            May 1992
Marque Crozman

Dummy Load Box For Large Audio Amplifiers         August 1992
Leo Simpson

3 1/2 Digit Panel Meter SC04110921                September 1992
Darren Yates DSE kit

Audio Level/VU Meter With LED Readout             February 1993
Bernie Gilchrist DSE kit

24-Hour Sidereal Clock For Astronomers 04103931   March 1993
Bob Flynn

Audio Power Meter 01105931                        April 1993
Darren Yates Altronics, DSE kits

Three-Function Home Weather Station 04201931-2    April 1993
John Clarke

Digital Clock With Battery Back-Up SC04101931-3   April 1993
Darren Yates

Digital Voltmeter For Your Car 04105931-2         June 1993
Darren Yates DSE, Jaycar kits                     20EPC
Errata: July 1996

Microprocessor Based Sidereal Clock               August 1993
John Western - kit from designer

In-Circuit Transistor Tester 04109931             September 1993
Darren Yates DSE, Jaycar kits                     ETB

Binary Clock                                      October 1993
Michael Vos Prototype Electronics kit

Jumbo Digital Clock 04108931                      November 1993
Darren Yates     

Low-Voltage LED Stroboscope 04112931-2-3          December 1993
Darren Yates

40V 3A Variable Power Supply 04202941       Pt 1  January 1994
John Clarke Altronics K3330                 Pt 2  February 1994
Errata: October 1994                              ETB

Discrete Dual Supply Voltage Regulator 04103941   April 1994
Darren Yates Errata: Sept 1994

Digital Water Tank Gauge                          April 1994
Jeff Monegal Kit no longer available

Induction Balance Metal Locator 04305941          May 1994
John Clarke Altronics, DSE, Jaycar kits
Errata: June 1994 See also Circuit Notebook
May 1996 for Larger Search Coils

PC-Based Nicad Battery Monitor 07103941           June 1994
Darren Yates

Simple Go/No-Go Crystal Checker 04106941          August 1994
Darren Yates Altronics, DSE kits                  ETB

Variable Dual-Rail Power Supply 04110941          October 1994
Darren Yates Altronics, DSE kits                  ETB

Temperature Controlled Soldering Station          October 1994
Jeff Monegal Kit no longer available

The Ol' Timer: An Alphanumeric Clock              November 1994
Anthony Nixon

Low Distortion Sinewave Oscillator 01110941       December 1994
Darren Yates

HexTemp: 6-Channel Thermometer With LCD Readout   February 1995
John Western - kit from designer

Lightning Distance Meter 08103951                 March 1995
Darren Yates

Transistor & Mosfet Tester for DMMs 04306951      May 1995
John Clarke DSE kit                               ETB

Build A Digital Multimeter For Only $30           June 1995
Leo Simpson/Rick Walters Altronics, DSE K1044

Audio Lab: A PC-Controlled Audio Test       Pt 1  August 1995
Instrument Roger Kent RSK kit               Pt 2  September 1995

Compact Geiger Counter 04310951                   October 1995
John Clarke Jaycar kit

Digital Speedometer & Fuel Gauge            Pt 1  October 1995
Jeff Monegal                                Pt 2  November 1995
Obsolete: kit & chip no longer available
 
Basic Logic Trainer DSE kit                       February 1996
Rex Callaghan

Zener Diode Tester For Your DMM 04302961          March 1996
John Clarke DSE kit                               ETB

Simple Battery Tester                             March 1996
John Clarke

High Voltage Insulation Tester 04303961           May 1996
John Clarke Altronics, DSE, Jaycar kits           ETB
Errata: June 1996

Low Ohms Tester For Your DMM 04305961             June 1996
John Clarke DSE, Jaycar kits                      ETB

Build The Minilog: An 8-Bit Data Logger           July 1996
Anthony Mott MicroZed Computers kit

VGA Digital Oscilloscope 04307961-4         Pt 1  July 1996
John Clarke                                 Pt 2  August 1996
.                                           Pt 3  September 1996

Sound Level Meter 04312961                        December 1996
John Clarke Altronics, DSE kits                   ETB

Pink Noise Source 04312962                        January 1997
John Clarke Altronics, DSE kits                   ETB
Errata: January 2001

Digi-Temp Temperature Monitor                     January 1997
Graham Blowes Mantis Micro Products kit
Errata: April 1997

Dual Power Supply 04101971-2                Pt 1  January 1997
Computer Controlled Rick Walters            Pt 2  February 1997

Analog Multimeter                                 February 1997
Leo Simpson DSE kit

Jumbo LED Clock 04302971-2                        March 1997
John Clarke

AudiOhm Audible Continuity Tester 04103971        March 1997
Rick Walters Jaycar kit

Digital Voltmeter For Your Car 04304971-2         April 1997
John Clarke

PC-Controlled Thermometer/Thermostat              June 1997
Mark Roberts Softmark Software/Parts
See also November 2000

Signal Tracer For Audio & RF 04106971             June 1997
Rick Walters Altronics, DSE & Jaycar kits
Errata: August 1997

Simple Waveform Generator 01307971                July 1997
John Clarke Jaycar kit

TENS Unit For Pain Relief 04307971                August 1997
John Clarke DSE K3702 - discontinued

5-Digit Tachometer 04310971-2                     October 1997
John Clarke Jaycar kit
Errata: April 1998, February 2004

PC-Controlled 6-Channel Voltmeter 07110971        October 1997
Mark Roberts Parts & Software From Softmark

Cable & Wiring Tester 04411971                    November 1997
Leon Williams                                     ETB

Telephone Exchange Simulator For Testing          February 1998
Mike Zenere - kit from designer                   ETB

Demo Board For Liquid Crystal Displays 04102981   February 1998
Rick Walters

PC-Controlled Liquid Crystal Display 04104981     March 1998
Rick Walters

PC-Controlled 0-30kHz Sinewave Generator          April 1998
Mark Roberts Softmark kit

Revised 40V 8A Power Supply 04304981        Pt 1  April 1998
John Clarke Altronics K3365                 Pt 2  May 1998
Refer project January/February 1992   

3-LED Logic Probe 04104981                        May 1998
Rick Walters Altronics, Jaycar kit                ETB
Modified version August 2004 Altronics K2586

Elementary Metal Detector 04405981                May 1998
John Clarke Altronics, DSE, Jaycar kits

Automatic Semiconductor Analyser 04107981         July 1998
Transistor Tester Designed By Andy Wood

Lab Quality AC Millivoltmeter 01510981-2    Pt 1  October 1998
John Clarke                                 Pt 2  November 1998

Thermocouple Adaptor For DMMs 04111981            December 1998
Rick Walters DSE, Jaycar kits Errata: Jan 99

High-Voltage Megohm Tester 04301991               January 1999
John Clarke Altronics, Jaycar kits

Audio Signal Generator 01402991-2           Pt 1  February 1999
John Clarke Altronics K2548, Jaycar         Pt 2  March 1999
Errata: May 1999, August 2000

Digital Capacitance Meter 04101991-2              February 1999
Rick Walters Altronics, Jaycar kits               ETB
Errata: May & June 1999

Remote Control Tester                             February 1999
Leo Simpson Oatley Electronics kit                ETB

Digital Anemometer Wind Speed Meter               March 1999
Julian Edgar Altronics kit

3-Channel Current Monitor With Data Logging       March 1999
Mark Roberts Parts from Softmark

Programmable Thermostat/Thermometer               April 1999
Keith Rippon

A 10uH to 19.99mH Inductance Meter 04107991       July 1999
Rick Walters Altronics, Jaycar kits               ETB

PC Monitor Checker 04108991                       August 1999
C C Roher Altronics K2720, Jaycar
See also Circuit Notebook November 1999

Switching Temperature Controller                  August 1999
Ross Tester Oatley Electronics kit
Errata: October 1999, February 2000

Digital Electrolytic Capacitance Meter 04109991   September 1999
Eugene W Vahle Jr Jaycar kit

Semiconductor Curve Tracer 04110991-2             October 1999
Charles Hansen

Solar Panel Regulator                             December 1999
Alan Bonnard Futurlec kit

The Fortune Finder Metal Locator 04303001         December 1999
John Clarke

Audio-Video Test Generator 04101001               January 2000
Leon Williams Altronics K2718, DSE, Jaycar

RCD Safety Switch Checker                         February 2000
John Clarke Altronics, Jaycar kits

Sine/Square Wave Generator/Oscillator 04102001    February 2000
Rick Walters Altronics, Jaycar kits
See also Circuit Notebook May 2001 for metering

Electronic Wind Vane 04103001-2-3-4               March 2000
John Clarke

Temperature Logger                                April 2000
Mark Roberts Softmark kit  

Automatic Rain Gauge 04105001                     June 2000
John Clarke Jaycar kit Errata: February 2001

Switchmode Power Supply 04106001            Pt 1  June 2000
AKA Li'l PowerHouse Peter Smith/Leo Simpson Pt 2  July 2000
Altronics kit
Errata: September 2000, August 2001

El Cheapo Musicians Lead Tester                   July 2000
John Clarke

Booze Buster Breath Tester                        October 2000
Ross Tester Oatley Electronics kit                EPC2

Programmable Electronic Thermostat/Thermometer    November 2000
Michael Jeffery Clinch Security Systems kit
Software from Softmark Refer project June 1997

Parallel Port LCD & Thermostat                    December 2000
Peter Crowcroft/Frank Crivelli Jaycar kit

Morse Clock 06112001                              December 2000
Leon Williams

The Wavemaker: Waveform Generator 04101011        January 2001
David Sibley

BIG Digit 12/24-Hour Clock 0410311-2              March 2001
John Clarke www.kitsrus.com kit 73
Errata: May 2001, September 2001

Microcontroller-Based 4-Digit Counter Modules     May 2001
Peter Crowcroft/Frank Crivelli Jaycar kits
Errata: June 2001

The Heartmate: Heart Rate Monitor 04107011-2      July 2001
John Clarke Altronics K8050

Pic-Toc: A Simple Digital Alarm Clock 04207011    July 2001
Michael Moore Altronics K8510

6-Digit Frequency Counter Module 04108011-2       August 2001
David L Jones

Automotive Thermometer 05110011-2                 October 2001
John Clarke Altronics K4349

PICFun eTimer 4-Way Event/Race/Anything Timer     February 2002
Ross Tester eLabtronics kit

Tank Water Level Indicator 05104021               April 2002
Allan March See July 2007 for updated version

Multi-Power Bench Power Supply 04104021-2         April 2002
Jim Rowe Altronics K3200, DSE kit, Jaycar KC5331

Multi-Mode Timer                                  April 2002
Frank Crivelli/Peter Crowcroft Ozitronics kit

Matchless Metal Locator 04106021                  June 2002
Thomas Scarborough DSE kit K3014

Digital Storage Logic Probe For Win98 04308021    August 2002
Trent Jackson/Ross Tester Errata: October 2002

Digital Thermometer/Thermostat 04208022           August 2002
John Clarke Altronics K6110, DSE K3016
Errata: October 2002
See also PID Temperature Controller, July 2007

Digital Instrument Adaptor 04108021               August 2002
A Sound Card Interface For PC Test Instruments      
Peter Smith See also Circuit Notebook May 2003

50W DC Electronic Load 04109021                   September 2002
Peter Smith DSE K3444 Errata: September 2004

Whistle & Point Cable Tracer                      October 2002
Jim Rowe Oatley Electronics kit
Errata: December 2002

4-Digit Crystal-Controlled Timing Module:         November 2002
Stopwatch, Photographic Timer, Frequency Meter,
Programmable Down Timer Frank Crivelli/
Peter Crowcroft K148 Start/Stop Timer kits from
Ozitronics and Oatley Electronics

10MHz DDS Function Generator 04105031             May 2003
David L Jones
http://alternatezone.com/electronics/dds.htm

Printer Port Tester Hardware Simulator 07105031   May 2003
Jim Rowe DSE kit K3609 (EPE PCB627)
PCB number amended in notes/errata June 2003

Digital Reaction Timer 04106031                   June 2003
Jim Rowe Jaycar KC5360 (EPE PCB569)

Programmable Continuity Tester 04207031           July 2003
Trent Jackson Jaycar KC5362
Errata: December 2005 (EPE PCB561)

Digital Timer For Less Than $20.00                August 2003
Jess Benning/Ross Tester

Current Clamp Adaptor For Multimeters 04109031    September 2003
John Clarke Altronics K2582, Jaycar KC5368
Errata: May 2004 (EPE PCB548)

13.5V 17A Bench Supply                            October 2003
Uses Old PC Power Supply Col Hodgson

Portable 50MHz Frequency Meter 04110031-2-3       October 2003
John Clarke Errata: November 2003, January 2004
Altronics K2540, DSE K7001, Jaycar KC5369
(EPE PCB581-583)

Programmable PIC-Powered Timer 04111031           November 2003
AKA Master of Time Trent Jackson

MiniCal 5V Meter Calibration Standard 04112031    December 2003
Barry Hubble Errata: April 2004 (EPE PCB622)

PIC-Based Car Battery Monitor                     December 2003
Alan Bonnard Kit from www.futurlec.com only

Shorted Turns Tester ZA1137                       February 2004
Bob Parker DSE K7205 refer EA August 1998

ESR Meter Mk2 ZA1044                        Pt 1  March 2004
Bob Parker Altronics K2574, DSE K7214       Pt 2  April 2004           

Simple DC Power Supply 04103041                   March 2004
Peter Smith Errata: May 2004

Poor Man's Metal Locator 04105041                 May 2004
Thomas Scarborough PCB AVAILABLE FROM SC
(EPE PCB570)

Appliance Energy Meter 04107041-2           Pt 1  July 2004
John Clarke                         Pt 2  August 2004
Altronics K4600 DSE K7217 (EPE PCB616/617)
See also Circuit Notebook July 2009

Poor Man's Q Meter                                July 2004
Maurie Findlay

Regulated 125W HV Power Supply For Valve          July 2004
Amplifiers Modified PC Power Supply
Leonid Lerner

3-State Logic Probe                               August 2004
Modified version of May 1998 project
Altronics K2586

IR Remote Checker 04101051                        January 2005
Jim Rowe DSE K3055 Jaycar KC5407 (EPE PCB608)

4-Minute Shower Timer                             January 2005
Ross Tester Gum Leaf Energy kit

Inductance & Q-Factor Meter 04102051        Pt 1  February 2005
Leonid Lerner                               Pt 2  March 2005
Errata: July 2005 Jan 2006 (EPE PCB644)   

Salvage It! A $10 Lathe & Drill Press Tachometer  March 2005
Julian Edgar

Sports Scoreboard                           Pt 1  March 2005
Jim Rowe                                    Pt 2  April 2005
Jaycar exclusive KC5408                     Pt 3  May 2005
See August 2005 for Enhanced Model

Salvage It! An Automatic Stopwatch Timer          May 2005
Julian Edgar

The Mesmeriser LED Clock                          June 2005
Scott Melling Jaycar KC5404/KC5416

Alternative Power Regulator Shunt Regulator       June 2005
Ross Tester Oatley Electronics K222
Errata: August 2005

Salvage It! A Voltmeter For Almost Nothing        June 2005
Julian Edgar

Salvage It! Salvaging & Using Common Thermostats  July 2005

Programmable Flexitimer Digital Timer 04108051-4  August 2005
Jim Rowe DSE K3580 Jaycar KC5415
Errata: December 2005 (EPE PCB631-634)

Enhanced Sports Scoreboard                        August 2005
Ref Project March-May 2005 Jim Rowe Jaycar kit

Salvage It! Washing Machine Pressure Switches     August 2005

Build Your Own Seismograph 04105091               September 2005
Dave Dobeson (EPE PCB636)
PICAXE processor from MicroZed or Altronics

Salvage It! A $5 2-Channel Vibration Sensor       October 2005
Julian Edgar

PICAXE-Based 433MHz Wireless Thermometer          January 2006
Stan Swan

PICAXE-Powered Thermostat & Temperature Display   February 2006
Michael Jeffery Errata: April 2006
Parts from Clinch Electronic Systems

Salvage It! A Low-Cost Large-Display Anemometer   March 2006
Julian Edgar

Pocket A/V Test Pattern Generator                 June 2006
Mick Gergos Altronics K2725

Programmable Analog On-Off Controller             July 2006
Greg Radion Ocean Controls kit

Novel PICAXE LED Chaser Clock AXE115S             August 2006
Ron Russo/Clive Seager

UHF Prescaler For Frequency Counters 04110061     October 2006
Jim Rowe (EPE PCB 697) Other parts from mouser.com

12V Digital Clock Timer ZA0019-ZA0020             October 2006
Bill De Rose DSE K3582

Radar Speed Gun DOPPLER1-2                  Pt 1  November 2006
Jim Rowe Jaycar KC5429 (EPE PCB694/695)     Pt 2  December 2006

HeartBeat CPR Trainer 04112061                    December 2006
Jim Rowe/Ross Tester

50MHz Frequency Meter Mk2 04110031-2-3            February 2007
John Clarke Jaycar KC5440 (EPE PCB581a/b/c)

PICAXE Bike Computer Ammeter                      February 2007
Stan Swan

Simple Digital Panel Meter - Ammeter & Voltmeter  March 2007
Ross Tester Revised Circuit: June 2007

GPS-Based Frequency Reference 04103071-2    Pt 1  March 2007
Jim Rowe                                    Pt 2  April 2007
Modifications & Additions                   Pt 3  May 2007
See also September 2011 for improved stability
PCB+MICRO AVAILABLE FROM SC (EPE PCB706/707)

Stereo VU/Peak Meter 01205071-2                   May 2007
John Clarke Jaycar KC5447 (EPE PCB702/703)
Errata: June 2007

Simple Digital Panel Meter - Revisited            June 2007
Ross Tester Refer Project March 2007

Build A 6-Digit Nixie Clock NX14L/NX14U     Pt 1  July 2007
David Whitby Gless Audio kit                Pt 2  August 2007

Tank Water Level Indicator Mk2 05104022           July 2007
Allan March Jaycar KC5449 (EPE PCB701)
Refer project April 2002 Errata: August 2007

PID Temperature Controller                        July 2007
Leonid Lerner Refer Project August 2002

Data Logging Weather Station 04109071-2     Pt 1  September 2007
Glenn Pure                                  Pt 2  October 2007
Errata: November 2007 (EPE PCB718-719)

PICProbe: A Versatile Logic Probe 04110071        October 2007
Ross Purdy Altronics K2587 Jaycar KC5457

PIC-Based Water Tank Level Meter 04111071   Pt 1  November 2007
John Clarke                                 Pt 2  December 2007
Base Station 04101081-2                     Pt 3  January 2008
Jaycar KC5460 KC5461 KC5462 (EPE PCB753/757/758)
Errata: January 2008, September 2008

Improving The Water Tank Level Meter              January 2008
Pressure Sensor John Clarke

PIC Programmer SOIC Converter 04211071            November 2007
John Clarke (EPE PCB723)

LPT-To-I2C Interface For Debugging 04203081       March 2008
Jim Rowe (EPE PCB744)

1pps Driver For Quartz Clocks 04103081            March 2008
Jim Rowe (EPE PCB725)

High-Accuracy Digital LC Meter 04105081           May 2008
Jim Rowe Altronics K2533 (EPE PCB745-747)

PIC-Based Flexitimer Mk4 EC8284                   June 2008
Jim Rowe Jaycar KC5464 (EPE PCB763)

PIC-Based Musical Instrument Tuning Aid 04107081  July 2008
Jim Rowe Altronics K1124 (EPE PCB756)

PICAXE 20M LED Thermometer                        July 2008
Stan Swan            

LED Strobe & Tachometer 04108081-4          Pt 1  August 2008
John Clarke Altronics K2510 (EPE PCB775-8)  Pt 2  September 2008

USB Clock With LCD Readout 04110081         Pt 1  October 2008
Mauro Grassi (EPE PCB779)          Errata & Pt 2  November 2008

Digital RF Level & Power Meter 04210081-3         October 2008
Jim Rowe (EPE PCB783-785)

Special Function Timer 05110081/05car081          October 2008
John Clarke Altronics K6140

Test The Salt Content Of Your Swimming Pool       December 2008
Leo Simpson

GPS-Synchronised Analog Clock 04203091            March 2009
Geoff Graham Altronics K1129 GPS Module K1131
(EPE PCB793) Errata: April 2009, May 2009
See November 2009 for sweep second version

Digital Audio Millivoltmeter 04103091             March 2009
Jim Rowe PCB+MICRO AVAILABLE FROM SC (EPE PCB794)
See May 2009 for Input Attenuator

The uCurrent: Microcurrent DMM Adaptor            April 2009
David L Jones Kit from alternatezone.com
(EPE PCB802)

Precision Voltage Reference 04305091              May 2009
Jim Rowe (EPE PCB805)

Audio Input Attenuator 04205091                   May 2009
For the Digital Audio Millivoltmeter Jim Rowe
PCB AVAILABLE FROM SC (EPE PCB811)

6-Digit GPS Clock 04105091                  Pt 1  May 2009
GPS Clock Driver 07106091                   Pt 2  June 2009
Jim Rowe GPS engine module from Altronics
PCBS+MICRO AVAILABLE FROM SC (EPE PCB800/806)
Errata: July/Oct/Dec 2009, March 2011, April 2012

Digital Audio Oscillator (EPE PCB803)             June 2009
Darian Lovett/Mauro Grassi Altronics K2543

PICAXE Humidity Measuring Using The HopeRF HH10D  June 2009
Wayne Geary/Stan Swan

Smart Battery Capacity Meter 04206091       Pt 1  June 2009
Mauro Grassi Altronics K1700                Pt 2  July 2009
Errata: May 2010

Mk3 Lead-Acid Battery Zapper/Desulphator 04107091 July 2009
Jim Rowe Altronics K1687 Jaycar KC5479
Errata: October 2009

Metal Locator 04207091                            July 2009
John Clarke (EPE PCB810)

Converting A Uniden Scanner For AIS               August 2009
Plus Slim Jim Antenna Stan Swan

Lead-Acid Battery Condition Checker 04108091      August 2009
Jim Rowe Altronics K1688 Jaycar KC5482

Autodim Add-On For The 6-Digit GPS Clock 04208091 September 2009
Jim Rowe PCB AVAILABLE FROM SC (EPE PCB819)

Simple Seismograph Using PICAXE/PEBBLE            September 2009
Stan Swan

Digital Megohm & Leakage Current Meter 04110091   October 2009
Jim Rowe Altronics K2556 (EPE PCB818)

Marine Twin Engine Speed Match Indicator 04111091 November 2009
John Clarke Altronics K6220 Jaycar KC5488
(EPE PCB824)

GPS Synchronisation 04203091                      November 2009
For Clocks With Sweep Hands by Geoff Graham
Refer project March 2009

Digital Capacitor Leakage Meter 04112091          December 2009
Jim Rowe Errata: April 2010 Altronics K2558
(EPE PCB826)

Ginormous 7-Segment LED Panel Meter Display       December 2009
Greg Radion Ocean Controls KTA-255 & KTA-256
(EPE PCB831/832)

Milliohm Adaptor For Digital Multimeters 04102101 February 2010
Jim Rowe Altronics K2531 Errata: October 2010
See also Circuit Notebook March 2012

Low Capacitance Adaptor For DMMs 04103101         March 2010
Jim Rowe Altronics K2576 Jaycar KC5493

Digital Audio Signal Generator 04203101-2   Pt 1  March 2010
Nicholas Vinen                              Pt 2  April 2010
Altronics K2553 Errata: June & August 2010  Pt 3  May 2010
(EPE PCB838/839)

LCD Thermometer/Thermostat                        March 2010
Michael Dedman Altronics K6115 (EPE PCB840)

Capacitor Leakage Adaptor For DMMs 04204101       April 2010
Jim Rowe (EPE PCB842)

EHT Stick: Extra High Voltage Probe 04104101      April 2010
Jim Rowe Altronics K2559 (EPE PCB841)

Digital Insulation Meter 04106101-2               June 2010
Jim Rowe PCBS+MICRO AVAILABLE FROM SC
(EPE PCB849/850)

Dual Tracking Power Supply 04206101-2-3     Pt 1  June 2010
Nicholas Vinen Altronics K3218              Pt 2  July 2010
Errata: August 2010, September 2010,
January 2011, August 2011 (EPE PCB851-853)

Air Quality Monitor 04306101                      June 2010
John Clarke (EPE PCB834)

16-Bit Digital Potentiometer 04107101             July 2010
Jim Rowe (EPE PCB856)

Ultrasonic Cleaner 04208101                       August 2010
John Clarke Errata: December 2010
Altronics K6021 Jaycar KC5499 (EPE PCB862)

Electrolytic Capacitor Reformer/ 04108101   Pt 1  August 2010
Tester/Leakage Meter Jim Rowe               Pt 2  September 2010
PCB+MICRO AVAILABLE FROM SC (EPE PCB861)

Ultrasonic Anti-Fouling For Boats 04109101  Pt 1  September 2010
Leo Simpson/John Clarke Jaycar KC5498       Pt 2  November 2010
PCB+MICRO AVAILABLE FROM SC (EPE PCB866)

Universal USB Data Logger 04112101          Pt 1  December 2010
Mauro Grassi                                Pt 2  January 2011
Altronics K2572 PCB+MICRO AVAILABLE FROM SC Pt 3  February 2011
Errata: January 2011, February 2011, April 2011,
January 2012 Firmware Improvements: May 2011

12V 20-120W Solar Panel Simulator 04103111         March 2011
John Clarke PCB AVAILABLE FROM SC

100V Speaker & Line Checker 04104111               April 2011
Ross Tester PCB AVAILABLE FROM SC

USB Breakout Box 04106111                          June 2011
Jim Rowe PCB AVAILABLE FROM SC

Portable Lightning Detector 04107111               July 2011
John Clarke PCB AVAILABLE FROM SC

Digital Spirit Level/Inclinometer 04108111         August 2011
Andrew Levido SHORT FORM KIT FROM SILICON CHIP

Ultrasonic Water Tank Level Gauge 04109111         September 2011
John Clarke Jaycar KC5503 PCB+MICRO FROM SC

Improved GPS-Based Frequency Reference 04103073    September 2011
Jim Rowe Refer project March-May 2007
PCB AVAILABLE FROM SC

G-Force Meter 04108111                             November 2011
Andrew Levido (ref Inclinometer August 2011)
Errata: January 2012 Jaycar KC5504
SHORT FORM KIT AVAILABLE FROM SILICON CHIP

Zener Diode Tester 04111111                        November 2011
John Clarke PCB AVAILABLE FROM SC

SemTest 04103121-2                           Pt 1  February 2012
Discrete Semiconductor Test Set Jim Rowe     Pt 2  March 2012
Construction + High Voltage Crowbar 04105121 Pt 3  May 2012
PCBS\FRONT PANEL\MICRO AVAILABLE FROM SC

6-Decade Resistance Substitution Box 04104121      April 2012
Jim Rowe PCB & FRONT PANEL AVAILABLE FROM SC

6-Decade Capacitance Substitution Box 04106121     July 2012
Nicholas Vinen PCB & FRONT PANEL AVAILABLE FROM SC

High-Current Adaptor For Scopes & DMMs 04108121    August 2012
Nicholas Vinen PCB AVAILABLE FROM SC

USB Virtual Audio Test Instrument Interface        September 2012
24109121-2 Jim Rowe
PCB+FRONT PANEL AVAILABLE FROM SC

USB Power Monitor 04109121                         December 2012
Nicholas Vinen Jaycar KC5516 PCB AVAILABLE FROM SC

2.5GHz 12-Digit Frequency Counter            Pt 1  December 2012
Jim Rowe

----------------------------------------------------------------

05 AUTOMOTIVE

20EPC = "20 Electronic Projects for Cars" Book SOLD OUT
EPC2 = "Electronic Projects For Cars Vol Two" Book 2003

Protector Car Burglar Alarm SC310188              February 1988
John Clarke Errata: August 1988

UHF Remote Alarm Switch SC031288                  March 1988
For Car Burglar Alarms John Clarke
Errata: June 88, July 88, Sept 88, Oct 88
See also Kit Clinic: January 1989

Ultrasonic Car Burglar Alarm                      May 1988
Branko Justic     

High Energy Ignition For Your Car SC51588         May 1988
Leo Simpson/John Clarke  Altronics DSE Jaycar     20EPC
Errata: April 1993, December 1998
See also Ask SC Feb 1989, Aug 1989, March 1992,
May 1994, Circuit Notebook August 1994, Ask SC
August 1998 re Optoelectronic Ignition, Ask SC
November 1997 for Positive Chassis Points Version

Breakerless Ignition SC51588                      June 1988
Leo Simpson/John Clarke Jaycar kit                20EPC
Errata: April 1993, December 1998  
See also Ask SC May 1994

Fuel Cut-Off Solenoid For Your Car                July 1988
Circuit Notebook Greg Swain

Car Safety Light SC0511088                        November 1988
John Clarke                                       20EPC
See also Circuit Notebook February 1989

Knightrider LED Scanner SC08111881                November 1988
Circuit Notebook Jaycar kit

Car Antenna Adaptor SC0511188                     December 1988
John Clarke/Greg Swain                            20EPC
       
Ultrasonic Proximity Detector SC0510289           January 1989
Car Reversing Alarm John Clarke/Greg Swain        20EPC
Errata: March 1989
See Ask SC August 1992 to add a relay output

Auxiliary Brake Light Flasher SC0510489           April 1989
Bob Flynn/Greg Swain
See Ask SC Dec 89 for 6V modification

Exhaust Gas Monitor For Cars & Vans SC0510789     July 1989
Bob Flynn/Leo Simpson

Compact Ultrasonic Car Burglar Alarm              July 1989
Greg Swain Oatley Electronics kit                 20EPC
Errata: October 1989               

UHF Remote Control Car Alarm Switch               December 1989
Greg Swain DSE kit Errata: January 1994

Delay Unit For Automatic Antennas SC0510390       March 1990
Greg Swain                                        20EPC

High Energy Ignition SC0510690                    May 1990
For Reluctor Distributors John Clarke             20EPC
Errata: April 1993, December 1998
See also Circuit Notebook February 1996

Speed Alarm For Your Car                          June 1990
Peter Gray

DC-DC Converter For Car Amplifiers SC05111901     December 1990
John Clarke/Greg Swain Errata: March 1991

Wiper Pulser For Rear Windows SC05211901          December 1990
John Clarke                                       20EPC

Simple 12/24V Light Chaser SC08106911             April 1991
Darren Yates Jaycar kit

Battery Discharge Pacer SC11108911                July 1991
For Electric Vehicles Dieter Kuenne

LED Digital Tachometer SC05108911                 August 1991
Darren Yates Altronics, DSE K3241, Jaycar kits    20EPC

Flashing Alarm Light For Cars                     November 1991
Syd McKitrick DSE kit                             20EPC

Automatic Controller For Car Headlights           January 1992
Wally Hammer/Jeff Monegal                         20EPC
See Circuit Notebook July 1992

Thermostatic Switch SC05204921                    March 1992
For Car Radiator Fans John Clarke                 20EPC
Errata: June 1992

3 1/2 Digit Panel Meter SC04110921                September 1992
Darren Yates DSE kit

Easy-To-Build UHF Remote Switch                   December 1992
Greg Swain Oatley Electronics kit                 20EPC

Low Fuel Indicator For Your Car 05203931          February 1993
John Clarke/Greg Swain DSE kit                    20EPC

Digital Voltmeter For Your Car 04105931-2         June 1993
Darren Yates DSE, Jaycar kits                     20EPC
Errata: July 1996

60-LED Brake Light Array For Your Car             August 1993
Leo Simpson Oatley Electronics kit                20EPC

Courtesy Light Switch-Off Timer 05209931          October 1993
John Clarke                                       20EPC
            
Water/Coolant Level Alarm 05305941                June 1994
For Your Car Radiator John Clarke/Leo Simpson     20EPC
Jaycar kit Errata: February 1995

Talking Headlight Reminder 01109941               October 1994
Darren Yates DSE, Jaycar kits                     20EPC

UHF Radio Alarm Pager Branko Justic               November 1994
Oatley Electronics kit

An Easy-To-Build Car Burglar Alarm                December 1994
Bernie Gilchrist DSE kit

Dual Channel UHF Remote Control                   January 1995
Bernie Gilchrist DSE kit

Oil Change Timer For Your Car 05102951            February 1995
Darren Yates

Building A Tube Sub-Woofer                        March 1995
Julian Edgar Car Sound

Fuel Injector Monitor For Cars 05108951           August 1995
Rick Walters/Leo Simpson Jaycar kit
Errata: September 1995, December 1996

Digital Speedometer & Fuel Gauge            Pt 1  October 1995
Jeff Monegal                                Pt 2  November 1995
Obsolete: kit & chip no longer available

Mixture Display For Fuel Injected Cars 05111951   November 1995
Julian Edgar Jaycar KC5195                        EPC2
See p11 ZOOM EFI Tech Special for modification

Engine Immobiliser For Your Car 05310951          December 1995
John Clarke Altronics, Jaycar kits
Errata: December 1996

Low Cost Multi-Tone Dashboard Alarm               February 1996
Julian Edgar

Programmable Electronic Ignition 05103961         March 1996
Anthony Nixon Obsolete

Knock Indicator 05302961                          April 1996
John Clarke Altronics, Jaycar kits

Feedback On The Programmable Ignition System      September 1996
Ref Project March 1996

600W DC-DC Converter For Car Hifi 05308961   Pt 1 October 1996
John Clarke Jaycar kit                       Pt 2 November 1996

Teeny Timer: A Low-Tech Timer For Your Car        April 1997
Leo Simpson

Digital Voltmeter For Your Car 04304971-2         April 1997
John Clarke

Neon Tube Modulator 05105971                      May 1997
Rick Walters DSE, Jaycar KC5221

The Bass Barrel Subwoofer                         August 1997
Julian Edgar Altronics kit

Multi-Spark CDI 05309971                          September 1997
Capacitor Discharge Ignition John Clarke          EPC2
Altronics K4370 DSE K3307 Jaycar KC5232
Errata: May 1999

Add Central Locking To Your Car                   October 1997
Leo Simpson Oatley Electronics kit

Speed Alarm For Your Car 0531197-1-2-3            December 1997
John Clarke Altronics, Jaycar kits

Loudness Control For Car Hifi Systems 01111971    December 1997
Rick Walters Jaycar kit

Automatic Garage Door Opener 05104981-2     Pt 1  April 1998
Rick Walters                                Pt 2  May 1998

Universal High Energy Ignition System 05305981    June 1998
John Clarke Altronics, DSE, Jaycar KC5247         EPC2
Errata: October 1998 See Circuit Notebook
October 2000 for Optoelectronic version

Blocked Filter Alarm For Your Car                 September 1998
Adrian Cuesta                                     EPC2

Gear Change Indicator For Your Car 05308981-2     September 1998
John Clarke Altronics, Jaycar kits

Turbo Timer For Your Car 05411981                 November 1998
John Clarke Altronics K4060, Jaycar KC5254
Errata: February 1999

Engine Immobiliser Mk2 05412981                   December 1998
John Clarke DSE, Jaycar KC5255                    EPC2

Keypad Engine Immobiliser 05401991                January 1999
John Clarke DSE, Jaycar KC5257

LED Bargraph Ammeter For Your Car 05101991        January 1999
Rick Walters DSE, Jaycar kits Errata: May 1999

Rev Limiter For Cars 05304991/05412981            April 1999
John Clarke Jaycar KC5265                         EPC2
Errata: October 2007

Carbon Monoxide CO Alarm 05303991                 May 1999
John Clarke

Programmable Ignition Timing 05406991       Pt 1  June 1999
Anthony Nixon Jaycar KC5202                 Pt 2  July 1999
Kit no longer available - obsolete                EPC2

Daytime Running Lights 05408991                   August 1999
AKA Auto Headlight Switch John Clarke
Altronics, DSE, Jaycar kits
Errata: September 1999

Digital Speed Alarm For Cars 05310991-2     Pt 1  November 1999
John Clarke Altronics K4345 Jaycar KC5279   Pt 2  December 1999
See also Circuit Notebook February 2006           EPC2

Digital Voltmeter For Your Car 05102001           February 2000
John Clarke Altronics, DSE, Jaycar kits           EPC2
Errata: March, August 2000

Ultrasonic Parking Radar                          February 2000
Branko Justic Oatley Electronics kit

OzTrip Car Computer                         Pt 1  March 2000
Robert Priestley Oztechnics kit             Pt 2  April 2000

Digital Tachometer For Your Car 05104001-2        April 2000
John Clarke Altronics, DSE, Jaycar KC5290         EPC2

Digital Fuel Mixture Display 05108001-2     Pt 1  September 2000
John Clarke                                 Pt 2  October 2000
Altronics K4347 DSE K4213 Jaycar KC5300

Installing A Free-Air Subwoofer In Your Car       October 2000
Julian Edgar

Headlight Reminder For Cars 05108011              August 2001
John Clarke Altronics K4348 Jaycar KC5317         EPC2

Automotive Thermometer 05110011-2                 October 2001
John Clarke Altronics kit

Neon Tube Modulator For Cars 05111011             November 2001
Rick Walters Jaycar KC5322                        EPC2

Motorbike Alarm 05101021                          January 2002
Mick Gergos Errata: February 2002                 EPC2
http://users.tpg.com.au/micwen/bikealarm

12V Battery Guardian 05105021                     May 2002
John Clarke Altronics K4080 Jaycar KC5334
Errata: July 2002

Compact 0-80A Automotive Ammeter 05106021-3       June 2002
John Clarke Altronics, DSE, Jaycar KC5336

Driving Light Protector 03109021                  September 2002
Rick Walters Jaycar KC5337

Tiptronic-Style Gear Indicator 05101031-2-3       January 2003
John Clarke Errata: Feb 2003, Dec 2003, Jan 2004
Altronics K4346 Jaycar KC5344 (EPE PCB549-551)

LED Lighting For Your Car 05103031-6              March 2003
Peter Smith Jaycar kits KC5354/5/6/7/9            EPC2
(EPE PCB568)

Little Dynamite Subwoofer                         March 2003
Julian Edgar                                      EPC2

Big Blaster Subwoofer                             May 2003
Julian Edgar

Adjustable DC-DC Converter For Cars 11106031      June 2003
John Clarke Altronics K6320 DSE K3234
Jaycar KC5358 (EPE PCB578)

Digital Instrument Display 05108031-2       Pt 1  August 2003
John Clarke                                 Pt 2  September 2003
Altronic K4375 DSE K3237 Jaycar KC5365
(EPE PCB571/572)

PIC-Based Car Battery Monitor                     December 2003
Alan Bonnard Kit from www.futurlec.com only

QuickBrake 05103041/05car071                      March 2004
Emergency Brake Light Trigger/Delta Throttle Timer
John Clarke Jaycar KC5373
Also published in Performance Electronics For Cars 2004

Smart Fuel Mixture Display 05104041               April 2004
John Clarke Jaycar KC5374 (EPE PCB584)

Courtesy Light Delay For Cars 05106041            June 2004
John Clarke Jaycar KC5392 Errata: July 2004
(EPE PCB603)

Smart Mixture Meter: Performance Electronics For Cars 2004
05car011 John Clarke Jaycar KC5374

Duty Cycle Meter: Performance Electronics For Cars 2004
05car021 John Clarke Jaycar KC5375

High Temperature Digital Thermometer With LCD: Performance
Electronics For Cars 2004
05car041 John Clarke Jaycar KC5376

Versatile Auto Timer: Performance Electronics For Cars 2004
05car081 John Clarke Jaycar KC5379

Universal Voltage Switch: Performance Electronics For Cars 2004
05car061 John Clarke Jaycar KC5377
05112081 December 2008

Universal Frequency Switch: Performance Electronics For Cars 2004
05car051 John Clarke Jaycar KC5378

Digital Pulse Adjuster: Performance Electronics For Cars 2004
05car131 John Clarke Jaycar KC5384

LCD Hand Controller: Performance Electronics For Cars 2004
05car141 John Clarke Jaycar KC5386

Peak-Hold Injector Adaptor: Performance Electronics For Cars 2004
05car151-2 John Clarke Jaycar KC5395

Digital Fuel Adjuster: Performance Electronics For Cars 2004
05car121 John Clarke Jaycar KC5385

Digital Speedo Corrector: Performance Electronics For Cars 2004
05car091 John Clarke Jaycar KC5380 - discontinued -
replaced with KC5435 SC December 2006

Independent Electronic Boost Controller: Performance
Electronics For Cars 2004
05car131 John Clarke Jaycar KC5387

Nitrous Fuel Controller: Performance Electronics For Cars 2004
05car111 John Clarke Altronics K6008 Jaycar KC5382
AKA 12V Speed Controller/Lamp Dimmer Ref November 2008

Intelligent Turbo Timer: Performance Electronics For Cars 2004
05car031 John Clarke Jaycar KC5383

V8 Doorbell 05101051                              January 2005
John Clarke Jaycar KC5405/KC5406
Errata: March 2005 (EPE PCB637/638)

Install Your Own In-Car Video                     April 2005
Gary Rollans Components from Jaycar  

Carbon Monoxide CO Alert/Alarm 05108051           August 2005
John Clarke DSE K4614 Errata: September 2005

Bilge Sniffer/Alarm 05109051                      September 2005
John Clarke DSE K4615

Alcohol Level Meter 05090051                      October 2005
RBT Blood Alcohol Concentration BAC Checker
John Clarke Errata: November 2005
No kit - sensor from Jaycar

High-Energy Electronic Ignition 05112051    Pt 1  December 2005
John Clarke DSE K3305 Jaycar KC5419         Pt 2  January 2006
Errata: January 2006

Intercooler Water Spray Controller 05104041       March 2006
Julian Edgar Jaycar KC5374/KC5422 (EPE PCB584)
Refer Mixture Meter project April 2004 and
Performance Electronics For Cars Book

Vehicle Multi-Voltage Monitor 05105061            May 2006
John Clarke DSE K4608 Jaycar KC5424 (EPE PCB642)
See also Circuit Notebook June 2009

LED Tachometer 05111061-2                   Pt 1  October 2006
John Clarke                                 Pt 2  November 2006
Errata: December 2006 (EPE PCB699/700)            

DC Relay Switch 05211061                          November 2006
John Clarke Jaycar KC5434 Errata: December 2006
(EPE PCB677)

Radar Speed Gun DOPPLER1-2                  Pt 1  November 2006
Jim Rowe Jaycar KC5429 (EPE PCB694/695)     Pt 2  December 2006

Super Speedo Corrector 05112061                   December 2006
John Clarke Jaycar KC5435 (EPE PCB682)

12/24V Auxiliary Battery Controller For Vehicles  December 2006
Branko Justic/Ross Tester Oatley Kit K227

Temperature Switch 05car101                       January 2007
John Clarke Jaycar KC5381 Errata: April 2006
(EPE PCB678)
Also published in Performance Electronics For Cars 2004

Car Air-Conditioner Controller 05101071           January 2007
John Clarke Jaycar KC5437 (EPE PCB685)

Garage Door Remote Telltale 03101071-2            January 2007
Jim Rowe

Simple Variable Boost Control 05102072            February 2007
For cars with turbochargers  Denis Cobley
Jaycar KC5438 Errata: March 2007 (EPE PCB690)

Fuel Cut Defeater 05102071                        February 2007
For cars with variable boost control Denis Cobley
Jaycar KC5439 Errata: March 2007 (EPE PCB691)

Programmable Ignition System 05104071-3     Pt 1  March 2007
John Clarke                                 Pt 2  April 2007
Jaycar KC5442                               Pt 3  May 2007
(EPE PCB727-729)
Errata: May 2007, September 2007, November 2007                

Knock Detector 05106071                           June 2007
For The Programmable Ignition System John Clarke
PCB AVAILABLE FROM SC (EPE PCB735)

Universal Frequency Switch 05car051               June 2007
John Clarke Jaycar KC5378
Also published in Performance Electronics For Cars 2004

Adaptive Turbo Timer 05108071                     August 2007
John Clarke Jaycar KC5451

Shift Indicator & Rev Limiter For Cars 05102081-2 February 2008
John Clarke (EPE PCB749/750)

Replacement CDI Module 05105081                   May 2008
For Motorbikes/Small Petrol Motors John Clarke
Altronics K4025, Jaycar KC5466
PCB AVAILABLE FROM SC (EPE PCB 772)

Special Function Timer 05110081/05car081          October 2008
John Clarke Altronics K6140

12V Speed Controller/12V Lamp Dimmer 05111081     November 2008
Leo Simpson Altronics K6008 PCB AVAILABLE FROM SC
AKA Nitrous Fuel Controller PEC 2004 (EPE PCB781)

Wideband Air-Fuel Mixture Display 05311081        November 2008
AKA Oxygen Sensor Display John Clarke
Errata: January 2009 (EPE PCB825)

Simple Voltage Switch 05112081/05car061           December 2008
John Clarke (EPE PCB801)

Car Scrolling Display 05101091-2            Pt 1  December 2008
Mauro Grassi                                Pt 2  January 2009
Altronics K4352                    Errata & Pt 3  February 2009
PCB+MICRO AVAILABLE FROM SC (EPE PCB786/787)

School Zone Speed Alert                           April 2009
Jim Rowe Jaycar KC5472 Errata: May 2009

Wideband Oxygen O2 Sensor 05110091          Pt 1  September 2009
John Clarke Jaycar KC5485/KC5486            Pt 2  October 2009
Errata: November 2009, January 2010
(EPE PCB829)

Voltage Interceptor 05112091                Pt 1  December 2009
For Cars With ECUs John Clarke     Errata & Pt 2  January 2010
Jaycar KC5490

GPS Car Computer 05101101                   Pt 1  January 2010
Geoff Graham Altronics K1133                Pt 2  February 2010

OBDII Interface For A Laptop Computer 05102101    February 2010
(OBDII To RS232 Interpreter) John Clarke
Altronics K4065

GPS Boat Computer/Navigator 05101101              October 2010
Geoff Graham Altronics K1143

Wideband Oxygen Sensor Controller Mk2       Pt 1  June 2012
05106121-2 John Clarke                      Pt 2  July 2012
Errata: July 2012, September 2012           Pt 3  August 2012
PCBS + MICROS AVAILABLE FROM SC

High-Energy Electronic Ignition 05110121    Pt 1  November 2012
John Clarke Altronics K#TBA Jaycar KC5513   Pt 2  December 2012

----------------------------------------------------------------

06 RADIO COMMUNICATIONS

Subcarrier ACS Adaptor For FM Tuners SC0611287    January 1988
John Clarke/Leo Simpson
See also Ask SC November 1992 for modifications

Flexo Shortwave Antenna                           January 1988
Ed Noll

Line Isolation Unit For Phone Patch Operation     February 1988
Garry Cratt Amateur Radio

RF Sniffer Probe And Preamplifier SC0410688       June 1988
Garry Cratt Amateur Radio
See also p80 Amateur Radio September 1988

DC-To-DC Switchmode Battery Charger SC14109881    September 1988
For 12V Gel Batteries Garry Cratt
Amateur Radio Errata: November 1988

FM Stereo Transmitter Mini-Mitter SC0611088       October 1988
John Clarke Altronics, DSE, Jaycar kits
Errata: December 1988

Convert CB Radio To 28MHz Amateur Band SC0621088  October 1988
Garry Cratt

Simple Adaptor To Receive SSB On S/W AM Receivers December 1988
Garry Cratt Amateur Radio

Relative Signal Strength Indicator For Amateur    January 1989
Radio Scanners Garry Cratt Amateur Radio

Simple VHF FM Monitor Receiver SC0610389    Pt 1  February 1989
Garry Cratt Amateur Radio DSE kit           Pt 2  March 1989
Errata: September 1989

Simple Stub Filter To Eliminate TV Interference   May 1989
Garry Cratt Amateur Radio

Intelligent 12V Gel Battery Charger SC11107891    July 1989
Garry Cratt Amateur Radio Altronics kit

GaAsFet Preamplifier For The 2-Metre Band         August 1989
Garry Cratt Amateur Radio

Dual Tone Multi-Frequency DTMF Encoder For        September 1989
Custom Control Circuits Garry Cratt
Amateur Radio

2-Chip Portable AM Stereo Radio SC0610889   Pt 1  September 1989
Steve Payor                                 Pt 2  October 1989
Errata: May 1990                            Pt 3  November 1989

FM Radio Intercom For Motorbikes SC0611189  Pt 1  October 1989
John Clarke DSE kit                         Pt 2  November 1989

Gladesville GaAsFet Amplifier For Amateur TV      October 1989
"Julie" Kentwell

Super Sensitive FM Bug/Wireless Microphone ZA1431 November 1989
Greg Swain DSE K5006
            
Two-tone Test Oscillator For SSB Transmitters     November 1989
Garry Cratt Amateur Radio

Radfax Decoder SC0311189                          November 1989
John Clarke Jaycar kit Errata: June 1990

HF Receiver For The 40-Metre Band SC06112891      December 1989
Garry Cratt Amateur Radio Errata: March 1990

Active Antenna For The Shortwave Bands            January 1990
Greg Swain Errata: May 1990

Phone Patch For Radio Amateurs SC12112891   Pt 1  January 1990
John Clarke/Greg Swain                      Pt 2  February 1990
Errata: August 1990

Random Wire Antenna Tuner For 6-Metres            February 1990
Garry Cratt Amateur Radio

VOX With Delayed Audio SC0610490                  April 1990
Darren Yates Errata: June 1990

Active CW Filter SC0620490                        April 1990
Garry Cratt Amateur Radio

The Mozzie CW Transceiver                         May 1990
Clive Chamberlain

Electronic Load SC14106902                        May 1990
Gary Cratt Amateur Radio

Simple Shortwave Converter SC0610990              September 1990
For the 2-Metre Band Garry Cratt Amateur Radio

6-Metre Amateur Transmitter SC06111901            November 1990
Garry Cratt Amateur Radio

5W Power Amplifier SC06101911                     December 1990
For the 6-Metre Amateur Transmitter
Gary Cratt Amateur Radio

Universal Wideband RF Preamplifier SC06103911     March 1991
Garry Cratt Amateur Radio

Easytune FSK Indicator SC06104911                 April 1991
For HF Transmissions Garry Cratt Amateur Radio

13.5V 25A Power Supply SC14105911-2         Pt 1  May 1991
For Amateur Transceivers John Clarke        Pt 2  June 1991

Active Filter To Improve CW Reception SC06106911  June 1991
Garry Cratt Amateur Radio
            
PEP Monitor Circuit SC06107911                    July 1991
Garry Cratt Amateur Radio

Simple Turnstile Antenna For Weather Satellite    November 1991
Reception Garry Cratt Amateur Radio

Baby Room Monitor SC06210911                      January 1992
John Clarke

Relative Field Strength Meter SC06110921          September 1992
Garry Cratt Amateur Radio

FM Radio Receiver SC06111921                      November 1992
Darren Yates DSE kit

PLL Demodulator For FM Amateur Receivers          November 1992
Garry Cratt Amateur Radio

Flea-Power AM Radio Transmitter SC0612921         January 1993
Darren Yates

AM Radio Trainer 06106931                   Pt 1  June 1993
Marque Crozman/Leo Simpson DSE kit          Pt 2  July 1993

Crystal Controlled IF Generator 06107931          July 1993

Build A 6-Metre Handheld Transceiver              February 1994
Garry Cratt Amateur Radio

80-Metre AM/CW Transmitter ZA1293/06106941        June 1994
Darren Yates DSE K6004

A Microprocessor Controlled Morse Keyer           August 1994
Alaexandre Zatsepin FLC Microdesign kit

Dual Diversity Tuner 06307941/2             Pt 1  August 1994
John Clarke Errata: Sept 1994               Pt 2  September 1994

Minivox Voice Operated Relay 06109941             September 1994
Darren Yates Altronics, DSE, Jaycar KC5172
Errata: December 1996

AM Radio For Aircraft Weather Beacons 06107941    September 1994
Darren Yates DSE kit

80-Metre DSB Amateur Rig Transmitter 06110941     November 1994
Leon Williams Jaycar kit

Wideband Preamplifier Has Response To 950MHz      January 1995
Garry Cratt Amateur Radio

Subcarrier Decoder ACS For FM Receivers 06103951  March 1995
John Clarke Jaycar kit

Simple 2-Transistor CW Filter 06104951            March 1995
Darren Yates

FM Radio Trainer 06303951                   Pt 1  April 1995
John Clarke DSE kit                         Pt 2  May 1995

Mains Music Transmitter & Receiver                May 1995
Jeff Monegal Errata: July 1995

CB Transverter For The 80M Amateur Band     Pt 1  November 1995
Leon Williams                               Pt 2  December 1995

3-Band HF Amateur Receiver 06109961               September 1996
Leon Williams DSE kit

Active Filter For CW Reception 06112961           December 1996
Leon Williams

FM Radio Tuner Card For Your PC 06106991          June 1999
Mark Roberts Jaycar kit Errata: August 1999
See Circuit Notebook December 1999
For Power-On Muting

A Morse Clock 06112001                            December 2000
Leon Williams

Minimitter FM Stereo Transmitter 06104011         April 2001
John Clarke Altronics, DSE, Jaycar kits
PCB AVAILABLE FROM SC

Direct Conversion Receiver 06107021         Pt 1  July 2002
For The 7MHz Amateur Band Leon Williams     Pt 2  August 2002

Micromitter: FM Stereo Transmitter 06112021       December 2002
John Clarke Jaycar KC5341, DSE K5009
PCB AVAILABLE FROM SC

Simple VHF FM/AM Regenerative Receiver 06212021   December 2002
Andrew Woodfield DSE K5015 Errata: April 2003

Weatherproof 2.4GHz WiFi Antennas 06108031        August 2003
Rob Clark

Smart Radio Modem For Microcontrollers 06111031   November 2003
Nenad Stojadinovic Altronics K9000

VHF Receiver For Weather Satellites 06112031      December 2003
Jim Rowe DSE K3226 Errata: January 2004 p38,
February 2004, April 2004, October 2004

Antenna/RF Preamp For Weather Satellites 06101041 January 2004
Jim Rowe Errata: April 2004

'WiFry': 2.4GHz WiFi Antenna                      September 2004
Stan Swan          

Yagi Antenna For UHF CB                           February 2005
Stan Swan               

PICAXE Data Over 477MHz UHF CB                    March 2005
Stan Swan        

433MHz Wireless Data Communication                December 2005
Stan Swan  

Little Jim: AM Radio Transmitter 06101061-2       January 2006
Jim Rowe PCB AVAILABLE FROM SC

Minispot 455kHz Modulated Oscillator 06101081     January 2008
Mauro Grassi (EPE PCB726) Errata: July 2008

Digital VFO With LCD Graphics Display 06103081    March 2008
Andrew Woodfield (EPE PCB734)

Planet Jupiter/Radio Jove Receiver 06108081       August 2008
Jim Rowe Altronics K1127 (EPE PCB771)

433MHz Sniffer 06101111                           January 2011
Stan Swan PCB AVAILABLE FROM SC

433MHz Locator Transmitter 06102111               February 2011
Stan Swan PCB AVAILABLE FROM SC

The Maximite Microcomputer 06103111         Pt 1  March 2011
Geoff Graham                                Pt 2  April 2011
Altronics K9550 PCB+MICRO AVAILABLE FROM SC Pt 3  May 2011
Q&A April 2012

Simple AM Radio Receiver 06101121                 January 2012
John Clarke PCB AVAILABLE FROM SC

Dorji 433MHz Wireless Data Modules                January 2012
Stan Swan

----------------------------------------------------------------

07 COMPUTERS

End Of File Indicator For Modems SC71288          February 1988
Greg Swain See Circuit Notebook May 1988

Line Filter/Mains Muzzler SC10101891              January 1989
Leo Simpson

Simple Computer Sound Repeater SC07104891         January 1989
Leo Simpson/John Clarke

Build Your Own LED Message Board by Don McKenzie           
Part 1: Overview                                  March 1989
Part 2: How The Interface Circuitry Works         April 1989
Part 3: Building The Message Board Control Unit   May 1989
Part 4: Building & Testing The Display Panel      June 1989

Biofeedback Monitor For Your PC                   May 1989
Jim Barbarello

Baby Tower AT-Compatible Kit Computer             August 1989
Greg Swain Electronic Solutions kit

1Mb Printer Buffer                                October 1989
Don McKenzie

Radfax Decoder SC0311189                          November 1989
John Clarke Jaycar kit Errata: June 1990

Digital Voice Recorder Board SC07111891           December 1989
John Clarke

Multi Purpose I/O Board For IBM PCs               March 1991
Graham Dicker PC Computers

PC Voice Recorder SC07107911                      August 1991
Darren Yates

Build This Fax/Modem For Your Computer            September 1991
Leo Simpson PC Marketplace kit

PC Talking Voltmeter SC07110911             Pt 1  October 1991
Darren Yates                                Pt 2  November 1991
Errata: December 1991

Compact Digital Voice Recorder                    February 1992
Leo Simpson

MAL 4.03 Microcontroller Board              Pt 1  November 1992
Barry Rozema                                Pt 2  December 1992
Part 3                              Pt 3  February 1993

Alphanumeric LCD Demonstration Board 07106931     May 1993
Darren Yates Altronics kit

Windows-Based Digital Logic Analyser        Pt 1  June 1993
Jussi Jumppanen kit                         Pt 2  July 1993

The Southern Cross Computer                       August 1993
Peter Crowcroft/Craig Jones DIY Electronics kit

Peripherals For The Southern Cross Z80 Computer   December 1993

Printer Status Indicator For PCs 07101941         January 1994
Darren Yates

Control Stepper Motors With Your PC 07201941      January 1994
Marque Crozman Altronics, Jaycar kits

PC-Based Nicad Battery Monitor 07103941           June 1994
Darren Yates

SmallTalk: Tiny Voice Digitiser For The PC        July 1994
Darren Yates

A Low-Cost MIDI Adaptor For Your PC Or Amiga      July 1995
George Hansper

Audio Lab: A PC-Controlled Audio Test       Pt 1  August 1995
Instrument Roger Kent RSK kit               Pt 2  September 1995

Build A PC-Controlled Robot From Surplus Parts    November 1995
Tony Mercer Refer Stepper Motor article,
SC January 1994

Test Your Reaction Time Using A PC                February 1996
Rick Walters

Build The Minilog: An 8-Bit Data Logger           July 1996
Anthony Mott MicroZed Computers kit

Multimedia Sound System 01110961
Pt 1: Bridged Amplifiers On A PC Card: TDA1519A   October 1996
Pt 2: Loudspeakers                                November 1996
Rick Walters Altronics, Jaycar kits
Errata: February 1997, July 1997

Digi-Temp Temperature Monitor                     January 1997
Graham Blowes Mantis Micro Products kit
Errata: April 1997

Computer Controlled Power Supply 04101971   Pt 1  January 1997
Rick Walters                                Pt 2  February 1997

PC-Controlled Moving Message Display              February 1997
John Western ex-Oatley Electronics kit

Teletext Decoder For Your PC                      May 1997
Chris Schach/Braden Phillips Current Dynamics kit

The Spacewriter Message Wand 08305971             May 1997
John Clarke Jaycar kit

A PC-Controlled Thermometer/Thermostat            June 1997
Mark Roberts Softmark Software/Parts
See also November 2000

Flexible Interface Card For PCs 07107971          July 1997
Rick Walters Jaycar KC5230
Errata: August 1997, October 1997, November 1997

PC Card For A Stepper Motor 07108971              August 1997
Rick Walters Errata: November 1997

PC Card For Two Stepper Motors 07208971           September 1997
Rick Walters Errata: November 1997

PC-Controlled 6-Channel Voltmeter 07110971        October 1997
Mark Roberts Parts & Software From Softmark

A 2-Axis Robot With Gripper                       December 1997
Graeme Matthewson Oatley Electronics kit

Stepper Motor Driver With Onboard Buffer 07109971 December 1997
Rick Walters Jaycar kit Errata: January 1998

PC-Controlled LCD Board 04104981                  March 1998
Rick Walters

PC-Controlled 0-30kHz Sinewave Generator          April 1998
Mark Roberts Softmark kit

A Chook Raffle/Random Number Generator Program    April 1998
For Your PC Rick Walters Errata: December 1998

Simple I/O Card With Automatic Data Logging       August 1998
Mark Roberts Parts from Softmark

Stress-O-Meter 07111981                           October 1998
Rick Walters

Getting Going With BASIC Stamp                    January 1999
Ross Tester/Bob Nicol DSE, MicroZed kits

3-Channel Current Monitor With Data Logging       March 1999
Mark Roberts Parts from Softmark

DIY PIC Programmer                                March 1999
Michael Covington/Ross Tester Oatley kit

XYZ Table With Stepper Motor Control
Part 1: Introduction                              May 1999
Part 2: Building The X-Y Table                    June 1999
Part 3: Building The Z Axis                       July 1999
Part 4: Motor Control Boards 07208991-2           August 1999
Part 5: Power Supply & Software 10108993          September 1999
Part 6: Pen Holder & Plotting Procedure           October 1999
Ken Ferguson & Rick Walters

FM Radio Tuner Card For Your PC 06106991          June 1999
Mark Roberts Jaycar kit Errata: August 1999
See Circuit Notebook December 1999

Remote Modem Controller 07408991                  August 1999
Leon Williams Jaycar kit Errata: March 2000

PC Monitor Checker 04108991                       August 1999
C C Roher Altronics, Jaycar kits
See also Circuit Notebook November 1999

Voice Direct Speech Recognition 07109991          September 1999
Ross Tester Adilam Electronics kit
Errata: October 1999

PC Powerhouse 12112991                            December 1999
Barry Hubble Jaycar kit Errata: January 2000

Parallel Port I/O Card For PCs                    January 2000
Peter Smith DSE kit K2805

AT Keyboard Translator                            May 2000
Steve Carroll/Bob Nicol  
Control Electronics/MicroZed Computers kits

PC-Controlled VHF FM Receiver                     June 2000
Mark Roberts Softmark kit
Errata: Sept 2000, March 2001

Moving Message Display Atilla Aknar               July 2000
obsolete - software no longer available

8-Channel PC Relay Board                          September 2000
Ross Tester Oatley Electronics kit

Programmable Electronic Thermostat/Thermometer    November 2000
Michael Jeffery Clinch Security Systems kit
Software from Softmark Refer project June 1997

Parallel Port LCD & Thermostat                    December 2000
Peter Crowcroft/Frank Crivelli Jaycar kit

PIC Programmer & TestBed 07101011                 January 2001
Barry Hubble/Peter Smith DSE K3603
Errata: March 2001, November 2006

MIDI-Mate: A MIDI Interface For PCs 01201011      February 2001
Jim Rowe Jaycar kit Errata: February 2003

Simple MIDI Expansion Box 01103011                March 2001
Jim Rowe

Parallel Port PIC Programmer & Checkerboard       March 2001
David Deer Jaycar kit KC5307
Errata: April 2001, July 2001Update July 2003

A GPS Module For Your PC PJGPS2K1                 April 2001
Peter Johnson

PC Games Port Tester                              June 2001
Trent Jackson

A PC To Die For                             Pt 1  June 2001
Build It Yourself                           Pt 2  July 2001
Greg Swain                                  Pt 3  August 2001

MP3 Jukebox 07109011                        Pt 1  September 2001
Peter Smith Altronics kit                   Pt 2  October 2001
FAQs January, April 2002 Errata: December 2002

PC-Controlled Mains Switch 10109011               September 2001
Trent Jackson/Ross Tester Altronics kit
Errata: April 2002, April 2006

Building Your Own PC - One Man's Approach         October 2001

Atmel Programming Adapter 07110011                October 2001
Peter Smith Errata: December 2001, October 2002

PC Infrared Transceiver 07112011                  December 2001
Peter Smith TDFS4500 from Farnell cat 315-2686
Altronics K2740, DSE K3608, Jaycar KC5323

PIC Fun And Games                                 December 2001
Ross Tester
eLabtronics kit also available from Altronics

PICFun eTimer 4-Way Event/Race/Anything Timer     February 2002
Ross Tester eLabtronics kit

Digital Storage Logic Probe For Win98 04308021    August 2002
Trent Jackson/Ross Tester Errata: October 2002

Digital Instrument Adaptor 04108021               August 2002
A Sound Card Interface For PC Test Instruments      
Peter Smith See also Circuit Notebook May 2003

PC Parallel Port Wizard 07210021                  October 2002
Trent Jackson

AVR ISP Serial Programmer 07110021                October 2002
Stephen Davies/Peter Smith Jaycar KC5340
Errata: April 2003

Windows-Based EPROM Programmer 07112021     Pt 1  November 2002
Jim Rowe                                    Pt 2  December 2002
DSE kit K3605                               Pt 3  February 2003
Upgraded Software June 2004

Phoenix Type Smart Card Reader 07201031           January 2003
David Freeman Jaycar kit KC5342
PIC Programmer Interface Notes: February 2003
Errata: March 2003
Ref Project March 2001 Jaycar kit KC5307
See July 2003 for Mk2

PICAXE: Introduction & Simple LED Flasher         February 2003
Stan Swan http://picaxe.orcon.net.nz

PICAXE: Shop Door Minder                          March 2003

PICAXE: Heartbeat Simulator                       April 2003

3 DIY PIC Programmers                             April 2003
Jim Rowe                  
Ozitronics/DIY Electronics kits K81, K149, K160

Building A Quiet PC                               April 2003
Peter Humphreys             

PICAXE: Motor Controller                          May 2003

Printer Port Tester Hardware Simulator 07105031   May 2003
Jim Rowe DSE kit K3609 (EPE PCB627)
Errata re PCB number: June 2003

PICAXE: Chookhouse Door Controller                June 2003
Stan Swan

PICAXE-Controlled Telephone Intercom              June 2003
David Lincoln

PICAXE-08 Port Expansion                          June 2003
David Lincoln          

PICAXE: Data Communications                       July 2003
Stan Swan           

Smart Card Reader/Programmer 07107031             July 2003
Peter Smith Jaycar KC5361 Exclusive
Errata: September 2006 (EPE PCB567)

Updating The PIC Programmer & Checkerboard        July 2003
Peter Smith refer project March 2001

PC Infrared Remote Receiver 07108031              August 2003
Peter Smith Altronics K2755 Jaycar KC5366
Errata: September 2003, November 2003

PICAXE: Fat Cat Clever Code                       August 2003
Stan Swan           

Portable Serial PIC Programmer 07109031           September 2003
Peter Smith
Altronics K9505 DSE K3610 Jaycar KC5367
Errata: July 2005, February 2006

PICAXE: A Datalogger & A Napping LEDs Circuit     September 2003
Stan Swan

PICAXE: 18X Series & 18A Temperature Sensor       November 2003
Stan Swan

PICAXE: Keyboards 101                             December 2003
Stan Swan                 

PICAXE-18X 4-Channel Datalogger
Pt 1: Basic Module                                January 2004
Pt 2: Real Time Clock                             February 2004
Pt 3: Humidity Sensor, More Memory & An LCD       March 2004
Clive Seager Errata: August 2004

PC Power Rail Monitor 07102041                    February 2004
Jim Rowe Altronics K2895 (EPE PCB576)

PC Or PICAXE Interface For UHF Remote Control     April 2004
John Holliday Refer Project June 2003

UHF Wireless Parallel Port 07105041               May 2004
Nenad Stojadinovic kit

Automating PC Power-Up                            June 2004
Peter Smith              

Upgraded Software For The Windows-Based Eprom     June 2004
Programmer refer November 2002-February 2003
Jim Rowe

PICAXE: Programmable Robot 07209041               September 2004
Thomas Scarborough Errata: November 2004
(EPE PCB602)

PICAXE-08M Kit: Rudolph The Red-Nosed Reindeer    September 2004
Clive Seager picaxe.co.uk microzed.com.au  

USB Power Injector 07110041                       October 2004
Jim Rowe Altronics K2910, Jaycar KC5399

USB-Controlled Power Switch 10111041              November 2004
Jim Rowe Jaycar KC5401
Errata: December 2004

PICAXE: Rudolph Infrared Remote Control           November 2004
Clive Seager picaxe.co.uk microzed.com.au

Solar-Powered Wireless Weather Station 07112041   December 2004
Uses PICAXE Nenad Stojadinovic

PICAXE: Picaxus Interruptus                       December 2004
Stan Swan

PICAXE: Simon Says                                January 2005
Clive Seager picaxe.co.uk microzed.com.au

USB Electrocardiograph 07102051                   February 2005
Jim Rowe DSE K3704 (EPE PCB643)

A Cheap UV EPROM Eraser                           March 2005
Barry Hubble            

PICAXE Data Over 477MHz UHF CB                    March 2005
Stan Swan        

PICAXE In Schools by Clive Seager
Pt 1: Assembling Your Schools Experimenter Board  May 2005
Pt 2: Responding To Input Signals                 June 2005
Pt 3: Making Sounds & Measuring Temperature       July 2005
Pt 4: Making Things Move                          September 2005
Pt 5: Adding IR RC & Voice Recording              November 2005

PICAXE Colour Recognition System                  June 2005
Clive Seager   

AVR200 Single Board Computer                Pt 1  June 2005
Ed Schoell Kit from www.jedmicro.com.au     Pt 2  July 2005

Serial Stepper Motor Controller                   July 2005
Greg Radion Kit from www.oceancontrols.com.au

Serial LCD Driver                                 August 2005
Graeme Matthewson Oatley Electronics K221
Errata: September 2005

Dead Simple USB Breakout Box                      October 2005
Stan Swan

PICAXE iButton Reader AXE109                      October 2005
Clive Seager Errata: December 2005

Serial I/O Controller & Analog Sampler 07111051   November 2005
Trent Jackson DSE K3090 (EPE PCB652)
Errata: December 2005, January 2006

433MHz Wireless Data Communication                December 2005
Stan Swan

PIC In-Circuit Programming Add-On                 December 2005
Keith Anderson (EPE PCB665)

AVR ISP SocketBoard 07103061                      March 2006
Peter Smith Jaycar KC5421 (EPE PCB649)
Refer projects October 2001 and October 2002

PICAXE Goes Wireless AXE210                 Pt 1  April 2006
Clive Seager                                Pt 2  May 2006

Multi-Throttle Controller For PC Flight Sims      August 2006
Robert Gott

PICAXE Net Server                           Pt 1  September 2006
Clive Seager                                Pt 2  October 2006
.                                           Pt 3  November 2006
Starter packs from microzed.com.au          Pt 4  December 2006

Dual Core PICAXE Infrared Data Communication      April 2007
Stan Swan

Playback Adapter For CD-ROM Drives 07112071 Pt 1  November 2007
Mauro Grassi                     Errata and Pt 2  December 2007
Jaycar KC5459 (EPE PCB740)
See also Circuit Notebook, July 2008

Low-Cost Programmer For dsPICs & PICs 07105081    May 2008
Mauro Grassi Jaycar KC5467 (EPE PCB754/755)
Errata: June 2008, December 2011

USB Power Injector 07110041                       June 2008
For External Hard Drives Greg Swain
Errata: July 2008

Manual 2-Way USB Device Switch 07104091           April 2009
Jim Rowe/Greg Swain (EPE PCB796)

6-Digit GPS Clock 04105091                  Pt 1  May 2009
GPS Clock Driver 07106091                   Pt 2  June 2009
Jim Rowe GPS engine module from Altronics
PCBS+MICRO AVAILABLE FROM SC (EPE PCB800/806)
Errata: July/Oct/Dec 2009, March 2011, April 2012

Autodim Add-On For The 6-Digit GPS Clock 04208091 September 2009
Jim Rowe PCB AVAILABLE FROM SC (EPE PCB819)

Universal I/O Board With USB Interface            October 2009
Dr Pj Radcliffe www.interestingbytes.wordpress.com

WIB Web Server In A Box 07111091            Pt 1  November 2009
Mauro Grassi                                Pt 2  December 2009
Altronics K6210 Jaycar KC5489 (EPE PCB830)  Pt 3  January 2010
Errata: December 2009/January 2010/January 2012
See also Circuit Notebook June 2010

Internet Time Display Module For The WIB 07102101 February 2010
Mauro Grassi
PCB+MICRO AVAILABLE FROM SC (EPE PCB836)

FAQs On The Web Server In A Box (WIB)             April 2010

Arduino-Compatible I/O USB Relay Controller       April 2010
Greg Radion/Ross Tester Ocean Controls KTA-223

PICAXE Project Development System                 July 2010
Jeff Monegal Oatley K277

The Maximite Microcomputer 06103111         Pt 1  March 2011
Geoff Graham                                Pt 2  April 2011
Altronics K9550 PCB+MICRO AVAILABLE FROM SC Pt 3  May 2011
Q&A April 2012

USB Stereo Recording/Playback Interface 07106111  June 2011
Jim Rowe PCB AVAILABLE FROM SC Errata: July 2011
See Circuit Notebook Sept 2011 For Phantom Power

The miniMaximite Controller 07111111              November 2011
Geoff Graham Altronics K9552 Jaycar KC5505
PCB+MICRO AVAILABLE FROM SC

The Colour MaxiMite Microcomputer 07109121  Pt 1  September 2012
Geoff Graham                                Pt 2  October 2012
PCB+MICRO AVAILABLE FROM SC  

Hacking A Mini Wireless Web Server          Pt 1  November 2012
Andrew Snow/Nicholas Vinen                  Pt 2  December 2012

----------------------------------------------------------------

08 GAMES

Plasma Display EHT Generator SC0820888            August 1988
Leo Simpson

Electronic Fish Bite Detector OE42F               September 1988
Branko Justic Errata: February 1989

Vader Voice SC08108881                            September 1988
Darth Junior DSE kit

Poor Man's Plasma Display SC11111881              November 1988
Leo Simpson Errata: January 1989

Knightrider LED Scanner SC08111881                November 1988
Circuit Notebook Jaycar kit

Map Reader For Trip Calculations SC08103891       March 1989
Malcolm Young/Leo Simpson

Syntom Synthesised Tom-Tom                        May 1989
Leo Simpson      

Pools/Lotto Selector SC08105891-2                 May 1989
Malcolm Young Errata: June 1989

Garbage Reminder SC08108891                       August 1989
John Clarke Errata: October 1989

Hot Canaries SC08112891                           February 1990
John Clarke           

Workout Timer For Aerobics Classes SC08102901     March 1990
Steve Calder

Electronic Die/Dice SC08107901                    July 1990
Darren Yates DSE kit

Horace The Electronic Cricket SC08106901          August 1990
John Clarke Jaycar kit

SurfSound Simulator SC08109901                    October 1990
Darren Yates   

Ticking Egg Timer SC08110901                      November 1990
Darren Yates     

The Big Escape SC08112901                         December 1990
Darren Yates        

The Fruit Machine SC08101911                      January 1991
Bruce Baguley    

2-Tone Alarm Module SC08111901                    January 1991
Darren Yates Jaycar kit

Simple 12/24V Light Chaser SC08106911             April 1991
Darren Yates Jaycar kit

Executive Thingie SC08103921                      April 1992
Darren Yates     

Number Cruncher SC08110921                        December 1992
Greig Sheridan/Darren Yates

Electronic Cockroach 08310921                     February 1993
John Clarke     

Reaction Trainer 08312921                         March 1993
John Clarke         

Low-Cost Quiz Game Adjudicator 08106931           July 1993
Darren Yates see Ask SC Aug 93

Remote-Controlled Electronic Cockroach 08307931   September 1993
John Clarke

Siren Sound Generator                             November 1993
Bernie Gilchrist DSE K5514

1-Chip Melody Generator                           December 1993
Bernie Gilchrist DSE kit

Novel LED Torch 08302941                          February 1994
John Clarke          

Simple LED Chaser 08103941                        March 1994
Darren Yates Altronics, DSE, Jaycar kits

Dual Electronic Dice 08105941                     May 1994
Darren Yates DSE kit

Clifford The Electronic Cricket 08112941          December 1994
Darren Yates DSE K3533 Jaycar KC5178
Errata: July 2005

Lightning Distance Meter 08103951                 March 1995
Darren Yates

Vader Voice 08310951                              September 1995
John Clarke DSE K3511, Jaycar kit

Magnetic Card Reader & Display                    January 1996
Mike Zenere Kit from designer

KnightRider LED Scanner 08105961                  May 1996
Rick Walters DSE K3168 Jaycar KC5204

Laser Pistol/Electronic Target 08112961/08112962  December 1996
Rick Walters

The Spacewriter Message Wand 08305971             May 1997
John Clarke Jaycar kit

Plasma Display/Jacob's Ladder                     September 1998
Branko Justic Oatley K120 discontinued

The Christmas Star 08211981                       November 1998
Les Grant Jaycar KC5253

Build Your Own Poker Machine SC08112981     Pt 1  November 1998
Andersson Nguyen                            Pt 2  December 1998

LEDS Have Fun!                                    February 1999
Leo Simpson DSE kit Errata: April 1999

The Line Dancer Robot 11385991                    May 1999
Andersson Nguyen Jaycar kit
Errata: August, September 1999

Heart Of LEDs 08205991                            May 1999
Les Grant Jaycar kit

The Hexapod Robot                                 July 1999
Ross Tester RobotOz kit     

Autonomouse The Robot 08409991-2-3          Pt 1  September 1999
John Clarke                        Errata & Pt 2  October 1999

Multi-Colour LED Christmas Tree                   November 1999
Les Grant Jaycar KC5280 Errata: December 1999

PICMAN 2000: A Programmable Robot 11101001        January 2000
Andersson Nguyen Altronics kit

LED Dice 08105001                                 May 2000
Doug Jackson Errata: July 2000

Come In Spinner: SpinStick Message Wand           August 2000
Attilla Aknar kit no longer available

Cybug - The Solar Fly                             September 2000
Ross Tester DSE kit       

Protoboards: The Easy Way Into Electronics
Leo Simpson
Pt 1: Build A Light Chaser                        September 2000
Pt 2: Build A Siren & Alarm Timer                 October 2000
Pt 3: More Circuits Based On The 555 Timer        November 2000
Pt 4: Fun With Comparators                        December 2000
Pt 5: More Fun With Comparators                   March 2001

Sun-Seeking Sunflower Cybug Power Plant           March 2001
Craig Maynard/Ross Tester DSE K3563

PC Games Port Tester                              June 2001
Trent Jackson              

PIC Fun And Games                                 December 2001
Ross Tester                     
eLabtronics kit also available from Altronics

PICFun eTimer 4-Way Event/Race/Anything Timer     February 2002
Ross Tester eLabtronics kit

32-LED Knightrider 08105021                       May 2002
John Clarke Altronics K5815

Decision Maker 08112021                           December 2002
Trent Jackson/Ross Tester

Jazzy Heart Electronic Jewellery 08108031         August 2003
Thomas Scarborough (EPE PCB554)

Human-Powered LED Torches                         February 2004
Julian Edgar

Escape Robot Kit Altronics K1103                  August 2004
reviewed by Dave Kennedy

PICAXE-08M: Rudolph The Red-Nosed Reindeer        September 2004
Clive Seager picaxe.co.uk microzed.com.au

Sports Scoreboard                           Pt 1  March 2005
Jim Rowe                                    Pt 2  April 2005
Jaycar exclusive KC5408                     Pt 3  May 2005

Swimming Pool Lap Counter 08103051                March 2005
Rick Walters Errata: April 2005 (EPE PCB610)

Introducing Microbric: Programmable Robotics      November 2005

The Microbric Viper Robot DSE K1800               December 2005

Salvage It! Human-Powered LED Torch               January 2006
Julian Edgar

Adding Infrared To Your Microbric Viper           February 2006
Ross Tester

A Line Tracker For Your Microbric Viper           March 2006
Ross Tester

Microbric Viper: The Sumo Module                  April 2006
Ross Tester

Multi-Throttle Controller For PC Flight Sims      August 2006
Robert Gott

Galactic Voice 08109061-2                         September 2006
John Clarke Jaycar KC5431 Errata: October 2006
(EPE PCB674)

Programmable Christmas Star                       November 2006
David Meiklejohn www.gooligum.com.au (EPE PCB692)

Fun With The New PICAXE 14-M LED Chaser           June 2007
Stan Swan

OSCAR Electronics Noughts & Crosses Game 08110071 October 2007           
Brian Healy (EPE PCB705)

Quizzical 08110111                                October 2011
John Clarke PCB AVAILABLE FROM SC
Errata: December 2011, January 2012

Interplanetary Voice 08102121                     March 2012
John Clarke PCB AVAILABLE FROM SC

Crazy Cricket/Freaky Frog 08109121                June 2012
John Clarke Errata: July 2012 Jaycar KC5510
PCB+MICRO AVAILABLE FROM SC

----------------------------------------------------------------

09 MODEL RAILWAY/RADIO CONTROL
      
14MRP = "14 Model Railways Projects" Book

RailPower Walkaround Throttle SC91488       Pt 1  April 1988
For Model Railroads Leo Simpson/John Clarke Pt 2  May 1988        
See Ask SC June 1988, May 1995                    14MRP
Errata: August 1995  

Diesel Sound Generator SC09109882                 December 1988
Greg Swain/John Clarke                            14MRP

LED Flasher For Model Railways SC09102891         February 1989
Malcolm Young                                     14MRP

Low-Cost Model Train Controller                   November 1990
Greg Swain

SteamSound Simulator SC09104911                   April 1991
Darren Yates

Fluorescent Light Simulator For Model Railways    May 1991
Darren Yates                                      14MRP

SteamSound Simulator Mk2 SC09110911               October 1991
Darren Yates/Leo Simpson Jaycar kit               14MRP

IR Remote Control SC91488/SC15204921-2      Pt 1  April 1992
For Model Railroads Leo Simpson/John Clarke Pt 2  May 1992                   
Ref SC April 1996: Replacement Module For   Pt 3  June 1992        
The SL486 & MV601 Remote Control Receiver ICs     14MRP

Track Tester SC09308921                           September 1992
For Model Railroads Leo Simpson/John Clarke       14MRP

Diesel Sound Simulator SC09111921                 December 1992
Darren Yates DSE, Jaycar kits                     14MRP

3 Simple Projects For Model Railroads:             
Train Controller/Traffic Light Simulator/         February 1993        
Points Controller Terry Mowles                    14MRP
Errata: May 1993 See also April & May 1997

Single Chip Sound/Message Recorder 01104931       July 1993
Darren Yates                                      14MRP
See also Circuit Notebook September 1997

Simple Low-Voltage Speed Controller 09111931      January 1994
Darren Yates DSE K3070
            
Level Crossing Detector 15203931                  March 1994
John Clarke DSE, Jaycar kits                      14MRP

Sound & Lights For Level Crossings 15203932       April 1994
John Clarke DSE, Jaycar kits                      14MRP

Two Drivers For Radio Control Servos 09105941-2   May 1994
Nenad Stojadinovic Altronics kit

Steam Train Whistle 09305941                      July 1994
Also Diesel Horn Simulator John Clarke
Altronics, DSE, Jaycar kits

Simple Timer For The Steam Train Whistle 05207941 July 1994
John Clarke

Building A Radio Control System For Models  Pt 1  December 1994
Bob Young                                   Pt 2  February 1995
.                                           Pt 3  March 1995

An 8-Channel Decoder For Radio Control            April 1995
Bob Young

A 16-Channel Decoder for Radio Remote Control     May 1995
Bob Young

Train Detector For Model Railways 09306951-3      June 1995
John Clarke Jaycar kit Notes: September 1995

Multi-Channel Radio Control Transmitter     Pt 1  June 1995
For Models Bob Young
Ref: March-October 1996 for Parts 2-8

Run Two Trains On A Single Track                  July 1995
With Level Crossing Lights & Sound Effects
Leo Simpson/Branko Justic Oatley Electronics kit

RailPower Mk2 09109951-2                    Pt 1  September 1995
Walkaround Throttle For Model Railways      Pt 2  October 1995
Rick Walters Jaycar kit Errata: Dec 95

IR Remote Control For The Railpower Mk2 09101961  January 1996
Rick Walters

Replacement Module For The SL486 & MV601 09103961 April 1996
Remote Control Receiver ICs Rick Walters
Ref: IR RC For Model Railroads, SC April-May 92;
Remote Volume Control For HiFi, SC May-June 93;
Stereo Preamplifier With IR RC, SC Sept-Nov 93

Mk22 Multi-Channel Radio Control Transmitter For Models:
Bob Young
Part 1: Introduction                              June 1995
Part 2: Encoder Module Errata: April 1996         March 1996
Part 3: AM Transmitter Circuit                    April 1996
Part 4: Transmitter PC Board                      May 1996
Part 5: Transmitter Encoder PC Board              June 1996
Part 6: Case Assembly/Sub-Assembly Interwiring    July 1996
Part 7: Programming The Transmitter               August 1996
Part 8: Advanced Programming                      October 1996

A Fast Clock For Railway Modellers 09112961       December 1996
Leo Simpson
See Ask SC May 1997 for Master/Slave Modification

3-Aspect Signalling For Model Railways 3ASIGNAL   March 1997
Jeff Monegal

Constant Brilliance Lighting CBLGEN               March 2997
For Model Railways Jeff Monegal

Train Controller For Model Railways 09104971      April 1997
Rick Walters DSE kit Errata: August 1999

Traffic Lights For A Model Layout 09205971        May 1997
Rick Walters DSE kit

Stepper Motor Manual Control Circuit 09106971     June 1997
Rick Walters DSE, Jaycar kits

A Fail-Safe Module For The Throttle Servo         June 1997
Bob Young Silvertone Electronics kit

InfraRed Remote Volume Control/1 to 8 Channels    July 1997
Leo Simpson Oatley Electronics kit

Points Controller For Model Railways 09107971     July 1997
Rick Walters Jaycar kit

In-Line Mixer For Radio Control Receivers         July 1997
Bob Young Silvertone Electronics kit
Errata: October 1998

Command Control 09102981/09103981           Pt 1  January 1998
For Model Railways                          Pt 2  February 1998
Barry Grieger                               Pt 3  March 1998
Jaycar kit                                  Pt 4  May 1998
Errata: March & June 1999                   Pt 5  June 1998

Mixer Module For F3B Glider Operations      Pt 1  November 1998
Bob Young Silvertone Electronics kit        Pt 2  December 1998

Command Control Decoder 09102991-2                February 1999
For Model Railways Cam Fletcher

RailPower Model Train Controller 09310991   Pt 1  October 1999
Remote Controlled Throttle                  Pt 2  November 1999
John Clarke                                 Pt 3  December 1999

Glowplug Driver For Model Aircraft/Boats/Cars     March 2000
Ross Tester Oatley Electronics kit

50A Motor Speed Controller With Brake For Models  May 2000
Ross Tester Oatley Electronics kit

L'il Pulser Train Controller 09102011             February 2001
John Clarke/Leo Simpson DSE kit, Jaycar KC5304
 
Jumbo Servo                                       May 2001
Ross Tester Oatley Electronics kit

DIY Remote Control For A Model Train Layout       July 2004
Uses PICAXE Greg Hunter

DC Motor Speed Controller 09103081-2        Pt 1  March 2008
Mauro Grassi Altronics K6005 Jaycar KC5465  Pt 2  April 2008
(EPE PCB736/737) Errata: April, May, July 2008

Railpower IV 09109081-2                     Pt 1  September 2008
Model Train Controller John Clarke          Pt 2  October 2008
Altronics K6015 (EPE PCB773/774)
Errata: December 2010

12V Speed Controller/12V Lamp Dimmer 05111081     November 2008
Leo Simpson Altronics K6008 PCB AVAILABLE FROM SC
AKA Nitrous Fuel Controller PEC 2004 (EPE PCB781)

One-Of-Nine Switch Position Indicator 09112091-2  December 2009
AKA Model Railway Track-In-Use Indicator
John Clarke/Leo Simpson Errata: January 2010
Altronics K6013 (EPE PCB827/828)

10A DCC Booster For Model Railways                July 2012
Jeff Monegal Oatley Electronics K298

Modifying CD-ROM Motors For High Power Operation  July 2012
Dave Thompson

Digital Sound Effects Generator Module 09109121   September 2012
Nicholas Vinen PCB+MICRO AVAILABLE FROM SC

DCC Reversing Loop Controller 09110121            October 2012
Jeff Monegal PCB+MICRO AVAILABLE FROM SC

----------------------------------------------------------------

10 MAINS POWER CONTROL

Speedi-Watt Power Controller SC1011287            December 1987
Universal Dimmer Leo Simpson
See Ask SC March 1988 for fluoro mod

Party Flash Light                                 May 1988
Stephen David               

DiscoLight SC1010688                        Pt 1  July 1988
John Clarke/Leo Simpson                     Pt 2  August 1988
Altronics, DSE, Jaycar kits Modification for
use with neon lighting, see Ask SC October 1995

Line Filter/Mains Muzzler SC10101891              January 1989
Leo Simpson

Universal Temperature Controller                  June 1989
Branko Justic/Jeff Monegal Oatley Electronics kit

Touch Lamp Dimmer SC11106891                      June 1989
Leo Simpson Errata: October 1989

Extension For Touch Lamp Dimmer SC10107892        July 1989
Leo Simpson Errata: September 1989

Speed Controller For Ceiling Fans                 January 1990
John Clarke   

Load Protector For Power Supplies SC04204901      June 1990
John Clarke/Leo Simpson

Universal Safety Timer For Appliances SC1010790   August 1990
John Clarke

Alarm Power Supply With Battery Back-Up           September 1990
Greg Swain DSE kit

Dimming Controls For The DiscoLight SC10111902    October 1990
John Clarke

4-Channel Lighting Desk/Dimmer SC10106911/2 Pt 1  June 1991
John Clarke/Leo Simpson DSE kit             Pt 2  July 1991

8-Station Automatic Sprinkler Controller SPV3     July 1992
Graham Blowes Mantis Micro kit

Heavy-Duty 5A Drill Speed Controller SC10109921   September 1992
Leo Simpson Altronics, DSE, Jaycar kits
Modifications: November 1992

High Power Dimmer For Incandescent Lamps 10107941 August 1994
Marque Crozman

Photographic Timer For Darkrooms 10304951         April 1995
John Clarke DSE, Jaycar kits
Errata: November 1996
See also Circuit Notebook December 1996

The Rain Brain Automatic Sprinkler Controller     January 1996
Graham Blowes Mantis Micro kit

Electronic Starter For Fluorescent Lamps 10308961 August 1996
John Clarke DSE kit Errata: October 1996

Power Control With A Light Dimmer                 October 1996
Leo Simpson

How To Repair Domestic Light Dimmers              November 1996
Leo Simpson

10A 240VAC Motor Speed Controller 10311971        November 1997
John Clarke DSE K3087, Jaycar kits
Errata: January 1998

A Regulated Supply For Darkroom Lamps 10107971    November 1997
Rick Walters

Power Supply For Stepper Motor Cards 10112971     December 1997
Rick Walters Jaycar kit
Refer Projects July-September & December 1997

Universal Stepper Motor Controller 10106981       June 1998
Rick Walters Jaycar kit

Heat Controller 10307981                          July 1998
John Clarke See also Circuit Notebook August 2001
PCB AVAILABLE FROM SC

Regulated 12V DC Plugpack                         December 1998
Ross Tester         

Use Your Old PC Power Supply For High             December 1998
Current Outputs Leo Simpson Errata: Jan 1999

Multi-Sector Sprinkler Controller                 February 2000
Ned Stojadinovic Kit from designer

Hot Wire Cutter Leo Simpson                       April 2000
Refer Glowplug Driver, March 2000

How To Run A 3-Phase Induction Motor From 240VAC  April 2000
Peter Laughton

Proximity Switch For 240VAC Mains Lights          August 2000
Leo Simpson/Allan Bonnard Futurlec kit

PC-Controlled Mains Switch 10109011               September 2001
Trent Jackson/Ross Tester Altronics kit
Errata: April 2002, April 2006

Light Dimmer 10101021                       Pt 1  January 2002
John Clarke Altronics K6030 Jaycar KC5324   Pt 2  February 2002
Errata: August 2002

Automatic Light Dimmer 10104021-2-3         Pt 1  April 2002
John Clarke                                 Pt 2  May 2002

Stepper Motor Controller                          May 2002
Ross Tester Oatley Electronics kit
Errata: June 2002 See also June 2002 for
Constant High-Current Source to suit

240V 5A Motor Speed Controller 10110021           October 2002
John Clarke Jaycar KC5339
Errata: Nov/Dec 2002, January 2003, May 2003

240V Mains Filter For Hi-Fi Systems               February 2003
Ross Tester Soundlabs kit

Sunset Switch 10106031                            June 2003
John Clarke Altronics K6025, Jaycar KC5359
Errata July 2003

PowerUp 10107031                                  July 2003
Turns Peripherals On Automatically John Clarke
Altronics K6046 Jaycar KC5363 (EPE PCB557)

USB-Controlled Power Switch 10111041              November 2004
Jim Rowe Jaycar KC5401

Bidirectional Motor Speed Controller              December 2004
Frank Crivelli Ozitronics K166 Errata: July 2005

Salvage It! A $5 Variable Voltage Power Supply    April 2005
Julian Edgar

Coolmaster/Tempmaster 10106051                    June 2005
Fridge/Freezer Temperature Controller Jim Rowe
Jaycar KC5413 Errata: September 2005 (EPE PCB675)

Automatic Table Lamp Dimmer 10107051              July 2005
With Remote Control John Clarke DSE K3040
Errata: September 2005

Ceiling Fan Timer 10110051                        October 2005
John Clarke        

Salvage It! Getting The Good Bits From Cordless   April 2006
Drills - And Putting Them To Work Julian Edgar

Remote Mains Relay ZA0017                         May 2006
Bill De Rose DSE K3041
See Remote Mains Relay Mk2 January 2009

PC-Controlled Mains Switch Mk2 10107061-2         July 2006
Trent Jackson

Tingle Terminator:                                July 2006
Stop Zaps From Double-Insulated Equipment
John Clarke

High-Power Reversible DC Motor Speed Controller   April 2007
Leo Simpson/Branko Justic Oatley K243
(EPE PCB863/864)

Throttle Interface For The DC Motor Speed         May 2007
Controller April 2007 Oatley K244

Adjustable Regulated Power Supply 10105071        May 2007
John Clarke Jaycar KC5446 (EPE PCB698)

UV Light Box For Making PC Boards 10111071-2      November 2007
Robert Scott (EPE PCB765/766)
Errata: December 2007, August 2008, March 2012

Emergency 12V Lighting Controller EC8274          January 2008
Jim Rowe Jaycar KC5456 (EPE PCB733)

UHF Remote Mains Switch 10102081                  February 2008
John Clarke Jaycar KC5462 (EPE PCB738)

UHF Remote Mains Switch Transmitter 10202081      February 2008
John Clarke Jaycar KC5462 (EPE PCB739)
Errata: March 2008

PIR-Triggered Mains Switch EC8273 (EPE PCB798)    February 2008
Jim Rowe Jaycar KC5455 Errata: March 2008

DSP Musicolour Lightshow 10107081-2         Pt 1  June 2008
Mauro Grassi                       Errata & Pt 2  July 2008
Testing, Troubleshooting, Firmware          Pt 3  August 2008
Remote Control 10107083            Errata & Pt 4  September 2008
Altronics K5803 (EPE PCB759/760/764)

Musicolour IrDA Accessory 10111081                November 2008
Mauro Grassi (EPE PCB807)

Brownout Protector 10112081                       December 2008
John Clarke Errata: January 2009

USB-Sensing Mains Power Switch 10101091           January 2009
Jim Rowe/Mauro Grassi Altronics K2920
PCB AVAILABLE FROM SC (EPE PCB788)

Remote Mains Relay Mk2                            January 2009
Jim Rowe Supersedes May 2006 Project

Coolmaster/Tempmaster Mk2 10202091                February 2009
Jim Rowe Jaycar KC5476 (EPE PCB792)

10A Universal Motor Speed Controller Mk2 10102091 February 2009
John Clarke Altronics K6035 Jaycar KC5477
Errata: March 2009

Remote-Controlled Lamp Dimmer 10104091-2          April 2009
Mauro Grassi Errata: May 2009
PCB+MICRO AVAILABLE FROM SC (EPE PCB799)

10A Full-Wave Motor Speed Controller 10105091     May 2009
John Clarke Altronics K6035 Jaycar KC5478
(EPE PCB804) Errata: June/July/September 2009

Temperature Logger & Controller 10101101    Pt 1  January 2010
Leonid Lerner                               Pt 2  February 2010

High-Power Reversible DC Motor Speed Controller   August 2010
Branko Justic/Leo Simpson Oatley K275

Mains Moderator                                   March 2011
Leo Simpson

SoftStart Soft Starter 10104121                   April 2012
Nicholas Vinen PCB AVAILABLE FROM SC
Altronics K6042

Induction Motor Speed Controller 10105121   Pt 1  April 2012
Andrew Levido PCB+MICRO AVAILABLE FROM SC   Pt 2  May 2012
Altronics K6032 Jaycar KC5509 Errata: June 2012
Errata & Modifications: December 2012

Soft Starter For Power Tools 10107121             July 2012
Nicholas Vinen Errata: August 2012
PCB AVAILABLE FROM SC Jaycar KC5511

Mains Timer For Fans Or Lights 10108121           August 2012
Nicholas Vinen Jaycar KC5512
PCB AVAILABLE FROM SC

Induction Motor Speed Controller 10105122         December 2012
Modifications To The April/May 2012 Project
Leo Simpson

----------------------------------------------------------------

11 BATTERY POWER/INVERTERS/FENCES/UPS

24V To 12V Converter For Trucks SC1111287         December 1987
John Clarke Errata: March, August 1988

Poor Man's Plasma Display SC1111188               November 1988
Leo Simpson Errata: January 1989

Touch Lamp Dimmer SC1110689                       June 1989
Leo Simpson Errata: October 1989

Intelligent 12V Gel Battery Charger SC11107891    July 1989
Garry Cratt Amateur Radio Altronics kit

12V Alarm Power Supply With Battery Back-Up       September 1990
Greg Swain DSE kit

1.5V To 9V DC Converter SC11111901                November 1990
Darren Yates

Three Inverters For Fluorescent Lights SC11103901 February 1991
Otto Priboj Jaycar kit

Battery Discharge Pacer SC11108911                July 1991
For Electric Vehicles Dieter Kuenne

12VDC/240VAC 40W Inverter SC11203921              February 1992
John Clarke Altronics kit
Errata: July, October 1992

15W 12-240V Inverter SC11106921                   June 1992
John Clarke

Miniature 1.5V To 9V DC Converter SC11111921      August 1992
Darren Yates DSE kit

2kW Sinewave Inverter SC11309921-4          Pt 1  October 1992
John Clarke                                 Pt 2  November 1992
.                                           Pt 3  December 1992
Project now obsolete                        Pt 4  January 1993
Transformer bobbins no longer available     Pt 5  February 1993

LED Flasher For Bicycles SC11112921               January 1993
Darren Yates Errata: March 1993

Solar-Powered Electric Fence                      April 1993
Branko Justic Oatley Electronics kit
Errata: January 1994

12VDC To 70VDC Step-Up Voltage Converter 11102931 April 1993
Darren Yates

Low-cost Mini Gas Laser 11104931                  May 1993
Flavio Spedalieri Oatley Electronics kit

+5V To +/-12V DC Converter 11109931               September 1993
Darren Yates DSE kit

Inverter For Fluorescent Tubes 11312931           November 1993
John Clarke Altronics kit

Compact 12-240VAC 200W Inverter 11309931          February 1994
John Clarke Errata: July, October 1994

Fast Charger For Nicad Batteries 11102941         May 1994
Darren Yates Altronics, DSE, Jaycar kits
Errata: July, Sept 1994

Portable 6V SLA Battery Charger                   July 1994
Brian Dove Jaycar kit

Nicad Zapper 11106941                             August 1994
Darren Yates Jaycar kit Errata: April 1998
See also Circuit Notebook June 1995

Electronic Ballast For Fluoros 11309941           October 1994
John Clarke

Simple Battery Saver Circuit For Torches 11101951 January 1995
Marque Crozman

Electric Fence Controller 11306951                July 1995
John Clarke DSE, Jaycar kits
Errata: December 1995, December 1998

Jacob's Ladder 11306951                           September 1995
John Clarke Jaycar KC5191

Fluorescent Light Inverter                        November 1996
Branko Justic Oatley Electronics kit

High-Current Motor Speed Control 11106971         June 1997
Rick Walters DSE, Jaycar KC5225
Errata: August 1997, October 1998
See June 2011 for Mk2

Flickering Flame For Stage Work 11410971          October 1997
Ross Tester Jaycar KC5234

Musical Doorbell Chime 11211971                   November 1997
Bob Flynn Altronics, DSE K3803

12V CFL Compact Fluorescent Lamp Inverter         March 1998
Branko Justic Oatley kit Errata: August 1998

Battery Capacity Indicator 11106961               September 1998
For Rechargeable Batteries Rick Walters

High Power Electric Fence Controller 11303991     April 1999
John Clarke Altronics, DSE kits
Errata: May 1999

Three 3 Electric Fence Testers 11303992-4         May 1999
John Clarke DSE, Jaycar kits

The Line Dancer Robot 11385991                    May 1999
Andersson Nguyen Jaycar kit
Errata: August, September 1999

Peltier-Powered Can Cooler                        September 1999
Ross Tester          

Backup Battery For Cordless Phones 12510991       October 1999
Leo Simpson Jaycar kit

PICMAN 2000: A Programmable Robot 11101001        January 2000
Andersson Nguyen Altronics kit

CFL Compact Fluorescent Lamp Driver 11107001      July 2000
John Clarke Jaycar kit

Build A LED Torch 11112001                        December 2000
John Clarke DSE K3018 See also Circuit Notebook
January 2002, May 2002 and October 2002

Two White LED Torches To Build 11105011/11205011  May 2001
John Clarke DSE kit for 6 LED version
Errata: June 2001

PowerPack 11305011                                May 2001
A Multi-Voltage Supply For Cars Peter Smith
Altronics kit Errata: June 2001

12V 40W Fluorescent Light Inverter 11109021       September 2002
John Clarke DSE K3131 Jaycar KC5338
Errata: December 2002, January 2003

Icy Esky: Peltier-Effect Tinnie Cooler            March 2003
Ross Tester Parts from Oatley Electronics

Adjustable DC-DC Converter For Cars 11106031      June 2003
John Clarke Altronics K6320 DSE K3234
Jaycar KC5358 (EPE PCB578)

1W Star 2-Cell LED Torch 11211031                 November 2003
John Clarke Errata: January 2004

Linear Supply For Luxeon 1W Star LEDs 11112031-2  December 2003
Peter Smith (EPE PCB588A/B)

High Efficiency Power Supply 11101041             January 2004
For 1W Luxeon Star LEDs Peter Smith
Altronics K1000 Errata: February 2004 (EPE PCB600)

3V To 9V DC-DC Converter 11103041                 March 2004
Peter Smith Altronics K6330 Jaycar KC5391
Errata: September 2004
See also Circuit Notebook August 2005

White LED Driver                                  March 2004
Oatley K202/K202A Errata: October 2004

StarPower: High-Efficiency Supply 11105041        May 2004
For Luxeon Star LEDs Peter Smith
Altronics K1010 Jaycar KC5389
Errata: September 2006 (EPE PCB615)

MicroPower Battery Protector 11107041             July 2004
Peter Smith DSE K3132 Errata: September 2004
(EPE PCB592)

CFL Compact Fluorescent Light Inverter/           September 2004
12V DC-DC Converter Branko Justic
Oatley Electronics K111A Errata: October 2004

Build Yourself A Windmill Generator         Pt 1  December 2004
Glenn Littleford                            Pt 2  January 2005
.                                           Pt 3  February 2005
.                                           Pt 4  March 2005

Pocket TENS Unit 11101061                         January 2006
John Clarke DSE K3705 PCB AVAILABLE FROM SC

Universal High Energy LED Lighting 11004061 Pt 1  April 2006
John Clarke/Julian Edgar (EPE PCB673)       Pt 2  May 2006

12/24V Auxiliary Battery Controller For Vehicles  December 2006
Branko Justic/Ross Tester Oatley Kit K227

Jacob's Ladder 11104071                           April 2007
Leo Simpson Jaycar KC5445 Errata: June 2007

Adjustable Voltage Regulator 11105081             May 2008
Jim Rowe Jaycar KC5463 (EPE PCB769)

LED Flasher LM3909 Replacement Module 11009081    September 2008
Thomas Scarborough PCB AVAILABLE FROM SC
(EPE PCB752)

12V 100W DC-DC Converter 11105111                 May 2011
John Clarke PCB AVAILABLE FROM SC

20A 12/24V DC Motor Speed Controller Mk2 11106111 June 2011
John Clarke Refer Mk1 June 1997
Altronics K6007 Jaycar KC5502 PCB AVAILABLE FROM SC

NOTE: Inverters: Search also For CONVERTER

----------------------------------------------------------------

12 TELEPHONES/FACSIMILE

Off Hook Indicator For Telephones SC1211187       November 1987
John Clarke

Personal Phone Ringer SC1211287                   January 1988
John Clarke

Line Grabber For Telephones SC121488              March 1988
Greg Swain

Hands-Free Speakerphone SC1210988                 September 1988
John Clarke Errata: November 1988, March 1989
See Ask SC Dec 88 for 50V source for testing

Add A Headset To The Speakerphone SC1210988       November 1988
Greg Swain

Telephone Bell Monitor/Transmitter SC0120489-     April 1989
Greg Swain
            
Phone Patch For Radio Amateurs SC1211289    Pt 1  January 1990
John Clarke/Greg Swain                      Pt 2  February 1990
Errata: August 1990

Music On Hold For Your Telephone                  September 1990
Jeff Monegal/Branko Justic Oatley Electronics kit

DTMF Decoder SC12106911                           May 1991
Darren Yates/Greig Sheridan

Fax/Modem For Your Computer                       September 1991
Leo Simpson PC Marketplace kit

Telephone Call Timer SC12104921                   March 1992
Darren Yates  

Telephone Intercom SC12105921-2                   May 1992
Greig Sheridan Errata: July 1992

Telephone Off-Hook Timer SC12106921               July 1992
Darren Yates

Interphone: A 10-Station Exchange CE92MC    Pt 1  August 1992
Jeff Monegal                                Pt 2  September 1992
Simplified Circuit: November 1992
Refinement: Circuit Notebook June 1993

Fibre Optic Two-Way Intercom                      May 1996
Leo Simpson DIY/Ozitronics kit

The Alert-A-Phone Loud Telephone Ringer           February 1997
Derek Diggles Telephone Technical Services kit

Telephone Exchange Simulator For Testing          February 1998
Mike Zenere Kit from designer                     ETB

Backup Battery For Cordless Phones 12510991       October 1999
Leo Simpson Jaycar kit

Addacom - Intercom Station Expander               November 1999
Paul Hoad Hoad Electronics kit

PC Powerhouse 12112991                            December 1999
Barry Hubble Jaycar kit Errata: January 2000

Telephone Off-Hook Indicator 12101001             January 2000
John Clarke see also Circuit Notebook August 2000

Message Bank & Missed Call Alert 12111001         November 2000
Rick Walters/Leo Simpson

Phonome 12106011                                  June 2001
Leon Williams

Do Not Disturb Telephone Timer 12107011           July 2001
John Clarke Jaycar kit

Telephone Call Logger                             December 2001
Frank Crivelli/Peter Crowcroft Ozitronics kit

Telephone Headset Adaptor 12107021                July 2002
John Clarke

SMS Controller 12110041                     Pt 1  October 2004
Peter Smith                                 Pt 2  November 2004
Altronics K9050 DSE K7221 Jaycar KC5400
Errata: December 2004, March 2005,
August 2005, December 2006 (EPE PCB609)

SMS Controller Add-Ons:
Test Jig                                          April 2005
PIR Sensor Interface                              April 2005
Low-Battery Alarm 11107041 See also July 2004     April 2005         

VoIP Analog Phone Adaptor 03109031                September 2005
Ross Tester Altronics K2780 Errata: May 2006

Phone/Fax Missed Call Alert 12103061              March 2006
Jim Rowe (EPE PCB655)

Phone Line Polarity Checker 12105111              May 2011
David Drane PCB AVAILABLE FROM SC

----------------------------------------------------------------
            
13 PHOTOGRAPHY/ASTRONOMY

Slave Flash Trigger SC131588                      April 1988
Greg Swain       

Alarm-Triggered Security Camera 03103931-2        March 1993
Tony Nixon

24-Hour Sidereal Clock For Astronomers 04103931   March 1993
Bob Flynn

IR Illuminator For Cameras & Night Viewers        March 1995
Branko Justic Oatley Electronics kit

Photographic Timer For Darkrooms 10304951         April 1995
John Clarke DSE, Jaycar kits
Errata: November 1996
See also Circuit Notebook December 1996

Flash Attack! Adding An External Battery Pack     October 1998
To A Flashgun Julian Edgar

Electric Camera Shutter Release                   April 2003
Julian Edgar    

Smart Slave Flash Trigger 13107031                July 2003
Jim Rowe Altronics K8080 DSE K3228 Jaycar KC5364
PCB AVAILABLE FROM SC (EPE PCB560)

Safe-T-Flash: A Safe Flash Trigger For Your       April 2008
Digital SLR Camera Ross Tester

A Quick'n'Easy Digital Slide "Scanner"            June 2008

Time Delay Photoflash Trigger 13102091            February 2009
Jim Rowe Altronics K6009 (EPE PCB791)
Errata: April 2009

Beam-Break Flash Trigger 13106092                 June 2009
Jim Rowe Altronics K6011 (EPE PCB 808/809)

Speed Controller For Film Projectors 13104111     April 2011
John Clarke PCB+MICRO AVAILABLE FROM SC

----------------------------------------------------------------

14 BATTERY CHARGERS

Megafast Nicad Battery Charger SC1410588          June 1988
Greg Swain

DC-To-DC Switchmode Battery Charger SC14109881    September 1988
For 12V Gel Batteries Garry Cratt Amateur Radio
Errata: November 1988

6/12V Charger For SLA Batteries SC1410390         March 1990
Darren Yates see also Ask SC June 1990

Electronic Load SC14106902                        May 1990
Gary Cratt Amateur Radio

Fast Charger For Nicad Batteries SC14101911 Pt 1  January 1991
John Clarke/Greg Swain                      Pt 2  February 1991

13.5V 25A Power Supply SC14105911-2         Pt 1  May 1991
For Amateur Transceivers John Clarke        Pt 2  June 1991

Battery Charger For Solar Panels                  November 1991
Steve Calder Jaycar kit Errata: February 1992

Nicad Battery Discharger SC14207921               July 1992
Marque Crozman Errata: September 1992
See also Ask SC October 1992

Portable 12-Volt SLA Battery Charger SC14107921   July 1992
Darren Yates Jaycar kit Errata: September 1992
See also Circuit Notebook December 1994

6/12V SLA Battery Charger SC14109921              August 1992
Darren Yates Errata: September 1992
See also Ask SC April 1997

Thunderbird Battery Charger SC14110921-2          October 1992
Herman Nacinovich

Automatic Nicad Battery Discharger                November 1992
Bernie Gilchrist DSE kit Errata: January 1993

Solar Charger For 12V Batteries                   March 1993
Branko Justic   

Nicad Cell Discharger 14305931                    May 1993
John Clarke DSE kit
Errata: July 1993 See also November 1994

Microprocessor-Controlled Nicad Battery Charger   September 1993
Warren Buckingham CIE kit Errata: September 1994

Switching Regulator For Solar Panels              January 1994
Otto Priboj

Nicad Zapper 11106941                             August 1994
Darren Yates Jaycar kit Errata: April 1998
See also Circuit Notebook June 1995

Automatic Discharger For Nicads 14306941          September 1994
John Clarke Altronics, Jaycar kits

Dry-Cell Battery Rejuvenator                      November 1994
Darren Yates       

Twin Cell Nicad Discharger 14305931               November 1994
Darren Yates Refer project May 1993

Sun Tracker For Solar Panels SC13101951           January 1995
Nenad Stojadinovic

Fast Charger For Nicad Batteries 14309951         October 1995
John Clarke Errata: June 1997

Automatic 10A Battery Charger 14105961-2          June 1996
Rick Walters Altronics, Jaycar kits

2A SLA Battery Charger 14305961                   July 1996
John Clarke Altronics, DSE, Jaycar kits
Errata: October 1996

Fast Battery Charger 14302981-2             Pt 1  February 1998
John Clarke Altronics, DSE kits             Pt 2  March 1998
Errata: May 1998

A Constant Current Charger With Mechanical Timer  July 1998
Branko Justic Oatley Electronics kit

A 12V Trickle Charger 14110981                    October 1998
Rick Walters Altronics, Jaycar kits
Errata: November 1998
See Circuit Notebook February 1999 & June 2000

Intelligent Nicad Battery Charger 14104011        April 2001
Peter Hayles PIC from designer
www.angelfire.com/electronic/hayles

Fast Battery Charger Mk2 14106011/14302982  Pt 1  June 2001
John Clarke Altronics K1672 Jaycar KC5315   Pt 2  July 2001
Errata: November/December 2001, October 2002

Intelligent Solar Power Battery Charger           March 2002
Ross Tester Oatley Electronics kit
Errata: April 2002, May 2003

Constant High-Current Source                      June 2002
Ross Tester Oatley Electronics kit

SuperCharger 14111021-2-3                   Pt 1  November 2002
For NiCad & NiMH Batteries Peter Smith      Pt 2  December 2002
Errata: June 2004
SuperCharger Addendum 14111024                    March 2003

12V SLA Battery Float Charger 01103034            March 2003
To Suit PortaPAL Altronics K1695
Errata: April 2003

Deep-Cycle 12V Battery Charger 14111041-2-3 Pt 1  November 2004
John Clarke Altronics K1675                 Pt 2  December 2004

Salvage It! Build A $2 Battery Charger            February 2005
Julian Edgar

Lead-Acid Battery Zapper 14107051                 July 2005
Jim Rowe Jaycar KC5414 (EPE PCB623)
Errata: September 2005, November 2005

A Charger For Your iPOD Or MP3 Player 14102061    February 2006
John Clarke Errata: March 2006, June 2007
(EPE PCB648)

Battery Zapper & Condition Checker 14105061       May 2006
Jim Rowe Jaycar KC5427/KC5428 exclusive
Errata: October 2006, December 2006

Salvage It! A High-Current 12V Car Battery        June 2006
Charger For Almost Nothing Julian Edgar

Cordless Power Tool Charger Controller 14112061   December 2006
John Clarke Jaycar KC5436
Errata: February 2007, April 2008 (EPE PCB686)

Intelligent 12V Battery Charger                   January 2007
Branko Justic/Ross Tester Oatley K215

Fast Charger For NiMH & Nicad Batteries 14109071  September 2007
John Clarke Altronics K1655 Jaycar KC5453
(EPE PCB720) Errata: December 2007

Mini Solar Battery Charger OE-K251A               February 2008
Branko Justic Oatley kit

12VDC Battery Charge Controller 14104081          April 2008
John Clarke Altronics K1677 (EPE PCB741)
Errata: September 2009
See also Circuit Notebook May 2008

USB Charger For Cars & Bikes 14105101             May 2010
Nicholas Vinen Altronics K1681 (EPE PCB844)

12/24V MPPT Solar Charge Controller 14102111      February 2011
John Clarke Jaycar KC5500
PCB+MICRO FROM SC - see March 2012 for mods

12V 20-120W Solar Panel Simulator 04103111        March 2011
John Clarke PCB AVAILABLE FROM SC

12/24V MPPT Solar Charge Controller Rev1 14102112 March 2012
John Clarke PCB+MICRO AVAILABLE FROM SC

12/24V MPPT Solar Charge Controller Q&A           March 2012

----------------------------------------------------------------

15 REMOTE CONTROL

UHF Remote Control Car Alarm Switch               December 1989
Greg Swain DSE kit Errata: January 1994

High Stability UHF Remote Transmitter             August 1990
DSE kit Greg Swain Errata: January 1994

Remote Control Extender For VCRs SC15108901       September 1990
John Clarke/Greg Swain

How To Connect Two TVs To One VCR                 November 1990
Jim Lawler

Remote Controller For Garage Doors          Pt 1  March 1991
Branko Justic Errata: June 1991             Pt 2  April 1991
See also Circuit Notebook October 1991

IR Remote Control SC91488/SC15204921-2      Pt 1  April 1992
For Model Railroads Leo Simpson/John Clarke Pt 2  May 1992                   
Ref SC April 1996: Replacement Module For   Pt 3  June 1992        
The SL486 & MV601 Remote Control Receiver ICs     14MRP

Speed Controller Using Discrete ICs         Pt 1  November 1992
Bob Young Remote Control                    Pt 2  December 1992
Silvertone kit               Ask SC/Errata & Pt 3  January 1993
Practical Applications                      Pt 4  April 1993

IR Remote Volume Control 01305931-2         Pt 1  May 1993
John Clarke                                 Pt 2  June 1993
Replacement Module For The SL486 & MV601
Remote Control Receiver ICs: April 1996

Remote Control For Dog/Woofer Stopper 03105932    June 1993
Darren Yates Oatley Electronics kit

Stereo Preamplifier With IR R/C 01308931-2  Pt 1  September 1993
John Clarke                                 Pt 2  October 1993
Errata: April 1994                          Pt 3  November 1993
Replacement Module For The SL486 & MV601
Remote Control Receiver ICs: April 1996

Remote-Controlled Electronic Cockroach 08307931   September 1993
John Clarke

Remote Controller For Garage Doors                December 1993
Branko Justic Oatley Electronics kit               
               
Intelligent IR Remote Controller                  March 1994
Ben Douchkov Benetron kit

Level Crossing Detector For Model Railways        March 1994
15203931 John Clarke DSE, Jaycar kits             14MRP

Sound & Lights For Level Crossings 15203932       April 1994
John Clarke DSE, Jaycar kits                      14MRP

Remote Control Extender For VCRs 15303941         April 1994
John Clarke Altronics, Jaycar kits
Errata: June 1994

Multi-Channel Infrared Remote Control 15105942    May 1994
Brian Roberts Errata: March 1995

Dual Channel UHF Remote Control                   January 1995
Bernie Gilchrist DSE kit

IR Remote Control For The Railpower Mk2 09101961  January 1996
Rick Walters

Three Remote Controls To Build
Single Channel UHF Remote Control Oatley kit      February 1996
Dual Channel UHF Remote Control Oatley kit        February 1996
Eight Channel IR Remote Control Oatley kit        February 1996
See Circuit Notebook May 1997 For Latched Outputs

Remote Control Extender For VCRs 15107961         July 1996
Rick Walters Jaycar KC5209 Errata: September 2002

A Fail-Safe Module For The Throttle Servo         June 1997
Bob Young Silvertone Electronics kit

InfraRed Remote Volume Control 1 to 8 Channels    July 1997
Leo Simpson Oatley Electronics kit

In-Line Mixer For Radio Control Receivers         July 1997
Bob Young Silvertone Electronics kit

Remote Controlled Gates For Your Home 15108971    August 1997
Phung Mai Errata: September 1997

Pan Your CCD Video Camera By Remote Control       January 1998
Branko Justic Oatley Electronics kit

Automatic Garage Door Opener 05104981-2     Pt 1  April 1998
Rick Walters                                Pt 2  May 1998

Remote Control Tester                             February 1999
Leo Simpson Oatley Electronics kit                ETB

10-Channel IR Remote Control Receiver 15102021    February 2002
John Clarke Altronics kit, Jaycar KC5326

Remote Volume Control Stereo Amplifiers 15106021  June 2002
John Clarke Altronics, DSE kits

Remote Volume Control 01107021/15106022-3         July 2002
For The Ultra-LD 2 x 100W Stereo Amplifier

Rolling Code 4-Channel UHF Remote Control         July 2002
Ross Tester Oatley Electronics kit                EPC2
Errata: September 2002 & December 2002
See Circuit Notebook February 2003 for 5th Channel

Versatile 12-Channel Infrared Remote Control      September 2002
Frank Crivelli/Ross Tester

Long-Range 4-Channel UHF Remote Control           June 2003
Greg Swain Oatley Electronics kit
For PC or PICAXE control see project April 2004

Long-Range 16-Channel UHF Remote Control System   October 2003
Jeff Monegal Oatley Electronics kit

Bed Wetting Alert 15109041-2                      September 2004
John Clarke Jaycar KC5396     

Portable/Wireless Doorbell 15109043               September 2004
John Clarke Jaycar KC5397

Garage Door/Gate Remote Controller                October 2004
Oatley Electronics K023C
Errata: November 2004, January 2005

Garage Door Remote Telltale 03101071-2            January 2007
Jim Rowe

12V Speed Controller/12V Lamp Dimmer 05111081     November 2008
Leo Simpson Altronics K6008 PCB AVAILABLE FROM SC
AKA Nitrous Fuel Controller PEC 2004 (EPE PCB781)

433MHz UHF Remote Switch 15101091-2               January 2009
John Clarke Altronics K1955/K1956 Jaycar KC5473
PCB+MICRO AVAILABLE FROM SC (EPE PCB789/790)
Notes: March 2009

UHF Remote Dual 230V Power Switch                 May 2009
Branco Justic/Ross Tester Oatley K231B
Errata: July 2009

UHF Rolling-Code Remote Control 15008091-2  Pt 1  August 2009
John Clarke                    FAQ/Errata & Pt 2  September 2009
Altronics K1957/K1958 Jaycar KC5483/KC5484
PCBS+MICRO AVAILABLE FROM SC (EPE PCB816/817)

----------------------------------------------------------------   
                     
16 LASERS/LIGHTING

Speedi-Watt Power Controller SC1011287            December 1987
Universal Dimmer Leo Simpson
See Ask SC March 1988 for fluoro mod

Build Your Own Lightbox                           March 1988
Leo Simpson               

Party Flash Light                                 May 1988
Stephen David

DiscoLight SC1010688                        Pt 1  July 1988
John Clarke/Leo Simpson                     Pt 2  August 1988
Altronics, DSE, Jaycar kits Modification for
use with neon lighting, see Ask SC October 1995

Touch Lamp Dimmer SC11106891                      June 1989
Leo Simpson

Extension For Touch Lamp Dimmer SC10107892        July 1989
Leo Simpson

Add Dimming Controls To The DiscoLight SC10111902 October 1990
John Clarke

Battery Powered Laser Pointer                     November 1990
Leo Simpson Oatley Electronics kit

Build A Bigger Laser                              January 1991
Otto Priboj Oatley Electronics kit

3 Inverters For Fluorescent Lights SC11103901     February 1991
Otto Priboj Jaycar kit

Fluorescent Light Simulator For Model Railways    May 1991
Darren Yates                                      14MRP

4-Channel Lighting Desk/Dimmer SC10106911-2 Pt 1  June 1991
John Clarke/Leo Simpson DSE kit             Pt 2  July 1991

Compact Solid-State Laser Pointer                 December 1991
Leo Simpson Oatley Electronics kit

Mini Gas Laser 11104931                           May 1993
Flavio Spedalieri Oatley Electronics kit

Inverter For Fluorescent Tubes 11312931           November 1993
John Clarke Altronics kit

Low-Voltage LED Stroboscope 04112931-2-3          December 1993
Darren Yates
            
High Power Dimmer For Incandescent Lamps 10107941 August 1994
Marque Crozman

Electronic Ballast For Fluorescents 11309941      October 1994
John Clarke

IR Illuminator For Cameras & Night Viewers        March 1995
Branko Justic Oatley Electronics kit

Build Your Own Laser Lightshow                    May 1996
Branko Justic Oatley Electronics kit

Build A Ropelite/Rope Light                       June 1996
Robert Riede Oatley Electronics kit

Build A Laser Pointer From A Kit                  June 1996
D Light DSE kit

Electronic Starter For Fluorescent Lamps 10308961 August 1996
John Clarke DSE kit Errata: October 1996

Power Control With A Light Dimmer                 October 1996
Leo Simpson

Low-Cost Fluorescent Light Inverter               November 1996
Branko Justic Oatley Electronics kit

How To Repair Domestic Light Dimmers              November 1996
Leo Simpson

Stop Blowing Incandescent Lights                  January 1997
Leo Simpson

Neon Tube Modulator 05105971                      May 1997
Rick Walters DSE kit Jaycar KC5221

Build A One Or Two-Lamp Flasher 16301981          January 1998
John Clarke DSE kit Jaycar kit

12V CFL/Compact Fluorescent Lamp Inverter         March 1998
Branko Justic Oatley kit Errata: Aug 1998

Laser Light Show                                  April 1998
Branko Justic Oatley kit

Beat Triggered Strobe Light 16305981              August 1998
John Clarke Altronics K5792

Proximity Switch For 240VAC Mains Lights          August 2000
Leo Simpson/Allan Bonnard Futurlec kit

Santa & Rudolph Christmas Lights Display 16111001 November 2000
John Clarke/Ross Tester DSE kit Jaycar KC5302

Build A LED Torch 11112001                        December 2000
John Clarke DSE kit See also Circuit Notebook
January 2002, May 2002 and October 2002

Pardy Lites Party Lights                          December 2001
Ross Tester Oatley Electronics kit
Errata: April 2002

The Itsy-Bitsy USB Lamp                           March 2002
Stan Swan/Ross Tester Jaycar KC5328

Krypton Bike Light                                September 2003
Julian Edgar

Prawnlite                                         January 2005
Branko Justic/Ross Tester Oatley K217

Universal High Energy LED Lighting 11004061 Pt 1  April 2006
John Clarke/Julian Edgar (EPE PCB673)       Pt 2  May 2006

Salvage It: Super Bicycle Light Alternator        October 2006
Julian Edgar

Bike Wheel POV Display 16109071                   September 2007
Ian Paterson (EPE PCB711)

12V Speed Controller/12V Lamp Dimmer 05111081     November 2008
Leo Simpson Altronics K6008 PCB AVAILABLE FROM SC
AKA Nitrous Fuel Controller PEC 2004 (EPE PCB781)

Solar Powered Lighting System 16105101      Pt 1  May 2010
John Clarke                                 Pt 2  June 2010
Altronics K6028 (EPE PCB845)

Digital Lighting Controller 16110101-2      Pt 1  October 2010
Nicholas Vinen/Jim Rowe                     Pt 2  November 2010
Errata: Nov 2010, Feb 2011, June 2011       Pt 3  December 2010
Altronics K5885/K5886
PCBS+MICRO AVAILABLE FROM SC (EPE PCB870/871)

LED Dazzler 16102111                              February 2011
Nicholas Vinen Errata: April 2011
RMS Parts kit (PCB AVAILABLE FROM SC)

Digital LED Lighting Controller 16110111          October 2011
For Christmas Lights Nicholas Vinen
PCB AVAILABLE FROM SC

Really Bright 10W LED Floodlight K318             February 2012
Branko Justic/Ross Tester
(Oatley Electronics kit)

LED Musicolour 16110121                     Pt 1  October 2012
Nicholas Vinen                              Pt 2  November 2012
PCB & FRONT/REAR PANELS AVAILABLE FROM SC

Seriously Bright 20W LED Floodlight               November 2012
Branko Justic/Ross Tester Oatley K329

----------------------------------------------------------------

17 SOLAR/WIND/RENEWABLES

Battery Charger For Solar Panels                  November 1991
Steve Calder Jaycar kit Errata: February 1992

Solar Charger For 12V Batteries                   March 1993
Branko Justic

Solar-Powered Electric Fence                      April 1993
Branko Justic Oatley Electronics kit
Errata: January 1994

Switching Regulator For Solar Panels              January 1994
Otto Priboj

Sun Tracker For Solar Panels SC13101951           January 1995
Nenad Stojadinovic

Solar Panel Regulator                             December 1999
Alan Bonnard Futurlec kit

Cybug - The Solar Fly                             September 2000
Ross Tester DSE kit

Intelligent Solar Power Battery Charger           March 2002
Ross Tester Oatley Electronics kit
Errata: April 2002, May 2003

Solar-Powered Wireless Weather Station 07112041   December 2004
Uses PICAXE Nenad Stojadinovic

Build Yourself A Windmill Generator         Pt 1  December 2004
Glenn Littleford                            Pt 2  January 2005
.                                           Pt 3  February 2005
.                                           Pt 4  March 2005

Mini Solar Battery Charger OE-K251A               February 2008
Branko Justic Oatley kit

Solar-Powered Alarm For Sheds & Boats 03103101    March 2010
John Clarke Altronics K6026 Jaycar KC5494
(EPE PCB 837)

Solar Powered Lighting System 16105101      Pt 1  May 2010
John Clarke                                 Pt 2  June 2010
Altronics K6028 (EPE PCB845)

12V 20-120W Solar Panel Simulator 04103111         March 2011
John Clarke PCB AVAILABLE FROM SC

----------------------------------------------------------------

18 POWER SUPPLIES/REGULATORS

Dual Tracking +/- 18.5V Power Supply SC041188     January 1988
John Clarke/Leo Simpson Altronics kit             ETB

Universal Power Supply SC04106881                 August 1988
For Op Amp Circuits Leo Simpson                   ETB
Altronics K3215, DSE, Jaycar KC5038
Errata: November 2004

+/- 50V 1.5A Dual Tracking Power Supply SC0410490 April 1990
John Clarke/Greg Swain Errata: October 1990

Low Cost Dual Power Supply SC0410790              July 1990
John Crichton

Alarm Power Supply With Battery Back-Up           September 1990
Greg Swain DSE kit

13.5V 25A Power Supply SC14105911-2         Pt 1  May 1991
For Amateur Transceivers John Clarke        Pt 2  June 1991

Adjustable Power Supply SC04201921          Pt 1  January 1992
John Clarke Altronics kit                   Pt 2  February 1992
Refer April 1998 for revised & updated version

The Eliminator SC04104921                         May 1992
Power Supply For Personal Radios
Marque Crozman

Switching Regulator For Solar Panels              January 1994
Otto Priboj

40V 3A Variable Power Supply 04202941       Pt 1  January 1994
John Clarke Altronics K3330                 Pt 2  February 1994
Errata: October 1994                              ETB

Discrete Dual Supply Voltage Regulator 04103941   April 1994
Darren Yates Errata: Sept 1994

Variable Dual-Rail Power Supply 04110941          October 1994
Darren Yates Altronics, DSE kits                  ETB

Dual Power Supply 04101971-2                Pt 1  January 1997
Computer Controlled Rick Walters            Pt 2  February 1997

Power Supply For Stepper Motor Cards 10112971     December 1997
Rick Walters Jaycar kit
Refer Projects July-September & December 1997

Revised 40V 8A Power Supply 04304981        Pt 1  April 1998
John Clarke Altronics K3365                 Pt 2  May 1998
Refer project January/February 1992

Use Your Old PC Power Supply For High             December 1998
Current Outputs Leo Simpson Errata: Jan 1999

Solar Panel Regulator                             December 1999
Alan Bonnard Futurlec kit

Switchmode Power Supply 04106001            Pt 1  June 2000
AKA Li'l PowerHouse Peter Smith/Leo Simpson Pt 2  July 2000
Altronics kit
Errata: September 2000, August 2001

Multi-Power Bench Power Supply 04104021-2         April 2002
Jim Rowe Altronics K3200, DSE kit, Jaycar KC5331

13.5V 17A Bench Supply                            October 2003
Uses Old PC Power Supply Col Hodgson

High Efficiency Power Supply 11101041             January 2004
For 1W Luxeon Star LEDs Peter Smith
Altronics K1000 Errata: February 2004 (EPE PCB600)

Simple DC Power Supply 04103041                   March 2004
Peter Smith Errata: May 2004

Regulated 125W HV Power Supply For Valve          July 2004
Amplifiers Modified PC Power Supply
Leonid Lerner DSE K3438

Salvage It! A $5 Variable Voltage Power Supply    April 2005
Julian Edgar

Alternative Power Regulator Shunt Regulator       June 2005
Ross Tester Oatley Electronics K222
Errata: August 2005

Power Supply 01109052 (EPE PCB659)                October 2005
For the Studio Series Stereo Preamplifier
Peter Smith Altronics K5501, Jaycar KC5418

Adjustable Regulated Power Supply 10105071        May 2007
John Clarke Jaycar KC5446 (EPE PCB698)

Adjustable Voltage Regulator 11105081             May 2008
Jim Rowe Jaycar KC5463 (EPE PCB769)

Dual Tracking Power Supply 04206101-2-3     Pt 1  June 2010
Nicholas Vinen Altronics K3218              Pt 2  July 2010
Errata: August 2010, September 2010,
January 2011, August 2011 (EPE PCB851-853)

Intelligent 12V Fan Controller 18107101           July 2010
Geoff Graham Altronics K6120 (EPE PCB857)

Hot Wire Cutter & Controller 18112101             December 2010
John Clarke PCB AVAILABLE FROM SC

Cheap High-Current Bench Supply                   January 2011
Nicholas Vinen

Universal Voltage Regulator 18103111              March 2011
Nicholas Vinen Jaycar KC5501 PCB AVAILABLE FROM SC

MiniReg 1.3-22V Adjustable Regulator 18112111     December 2011
John Clarke PCB AVAILABLE FROM SC

Simple 1.5A Switching Regulator 18102121          February 2012
AKA MiniSwitcher Nicholas Vinen
Altronics K6340 Jaycar KC5508
PCB AVAILABLE FROM SC

----------------------------------------------------------------

19 TIMERS/COUNTERS/SEQUENCERS

Workout Timer For Aerobics Classes SC08102901     March 1990
Steve Calder

Universal Safety Timer For Appliances SC1010790   August 1990
John Clarke

3-Digit Counter Module SC0430990                  September 1990
Darren Yates Jaycar kit Errata: October 1990
See also Ask SC April 1994

Ticking Egg Timer SC08110901                      November 1990
Darren Yates

Telephone Call Timer SC12104921                   March 1992
Darren Yates

Telephone Off-Hook Timer SC12106921               July 1992
Darren Yates     

Courtesy Light Switch-Off Timer 05209931          October 1993
John Clarke                                       20EPC

Simple Timer For The Steam Train Whistle 05207941 July 1994
John Clarke

Oil Change Timer For Your Car 05102951            February 1995
Darren Yates

Photographic Timer For Darkrooms 10304951         April 1995
John Clarke DSE, Jaycar kits
Errata: November 1996
See also Circuit Notebook December 1996

Teeny Timer: A Low-Tech Timer For Your Car        April 1997
Leo Simpson

Turbo Timer For Your Car 05411981                 November 1998
John Clarke Altronics K4060, Jaycar KC5254
Errata: February 1999

Microcontroller-Based 4-Digit Counter Modules     May 2001
Peter Crowcroft/Frank Crivelli Jaycar kits
Errata: June 2001

Do Not Disturb Telephone Timer 12107011           July 2001
John Clarke Jaycar kit

6-Digit Frequency Counter Module 04108011-2       August 2001
David L Jones

PICFun eTimer 4-Way Event/Race/Anything Timer     February 2002
Ross Tester eLabtronics kit

Multi-Mode Timer                                  April 2002
Frank Crivelli/Peter Crowcroft Ozitronics kit

4-Digit Crystal-Controlled Timing Module:         November 2002
Stopwatch, Photographic Timer, Frequency Meter,
Programmable Down Timer Frank Crivelli/
Peter Crowcroft K148 Start/Stop Timer kits from
Ozitronics and Oatley Electronics

Digital Reaction Timer 04106031                   June 2003
Jim Rowe Jaycar KC5360 (EPE PCB569)

Digital Timer For Less Than $20.00                August 2003
Jess Benning/Ross Tester

Programmable PIC-Powered Timer 04111031           November 2003
AKA Master of Time Trent Jackson

Versatile Auto Timer: Performance Electronics For Cars 2004
05car081 John Clarke Jaycar KC5379

Intelligent Turbo Timer: Performance Electronics For Cars 2004
05car031 John Clarke Jaycar KC5383

QuickBrake 05103041/05car071                      March 2004
Emergency Brake Light Trigger/Delta Throttle Timer
John Clarke Jaycar KC5373
Also published in Performance Electronics For Cars 2004

4-Minute Shower Timer                             January 2005
Ross Tester Gum Leaf Energy kit

Swimming Pool Lap Counter 08103051                March 2005
Rick Walters Errata: April 2005 (EPE PCB610)

Salvage It! An Automatic Stopwatch Timer          May 2005
Julian Edgar

Programmable Flexitimer Digital Timer 04108051-4  August 2005
Jim Rowe DSE K3580 Jaycar KC5415
Errata: December 2005 (EPE PCB631-634)

Ceiling Fan Timer 10110051                        October 2005
John Clarke

12V Digital Clock Timer ZA0019-ZA0020             October 2006
Bill De Rose DSE K3582

Adaptive Turbo Timer 05108071                     August 2007
John Clarke Jaycar KC5451

PIC-Based Flexitimer Mk4 EC8284                   June 2008
Jim Rowe Jaycar KC5464 (EPE PCB763)

Special Function Timer 05110081/05car081          October 2008
John Clarke Altronics K6140

Remote Controlled Digital Up/Down Timer 19108101  August 2010
Nicholas Vinen Errata: September 2010
Altronics K6145 Jaycar KC5496

VersaTimer/Switch 19106111                        June 2011
Latching Relay/Programmable Timer John Clarke
Altronics K6125 PCB AVAILABLE FROM SC

----------------------------------------------------------------

20 BOATING/NAUTICAL/MARINE

Marine Twin Engine Speed Match Indicator 04111091 November 2009
John Clarke Altronics K6220 Jaycar KC5488
(EPE PCB824)

Solar-Powered Alarm For Sheds & Boats 03103101    March 2010
John Clarke Altronics K6026 Jaycar KC5494
(EPE PCB837)

Ultrasonic Anti-Fouling For Boats 04109101  Pt 1  September 2010
Leo Simpson/John Clarke Jaycar KC5498       Pt 2  November 2010
PCB+MICRO AVAILABLE FROM SC (EPE PCB866)

GPS Boat Computer/Navigator 05101101              October 2010
Geoff Graham Altronics K1143

Rudder Position Indicator 20107111-4        Pt 1  July 2011
Nicholas Vinen PCB+MICRO AVAILABLE FROM SC  Pt 2  August 2011

----------------------------------------------------------------

21 WEATHER/CLIMATE/TEMPERATURE/HUMIDITY ETC

Simple Turnstile Antenna For Weather Satellite    November 1991
Reception Garry Cratt Amateur Radio

Three-Function Home Weather Station 04201931-2    April 1993
John Clarke

AM Radio For Aircraft Weather Beacons 06107941    September 1994
Darren Yates DSE kit

Digi-Temp Temperature Monitor                     January 1997
Graham Blowes Mantis Micro Products kit
Errata: April 1997

Digital Anemometer Wind Speed Meter               March 1999
Julian Edgar Altronics kit

Electronic Wind Vane 04103001-2-3-4               March 2000
John Clarke

Temperature Logger                                April 2000
Mark Roberts Softmark kit

Digital Thermometer/Thermostat 04208022           August 2002
John Clarke Altronics K6110, DSE K3016
Errata: October 2002
See also PID Temperature Controller, July 2007

PICAXE: 18X Series & 18A Temperature Sensor       November 2003
Stan Swan

VHF Receiver For Weather Satellites 06112031      December 2003
Jim Rowe DSE K3226 Errata: January 2004 p38,
February 2004, April 2004, October 2004

Antenna/RF Preamp For Weather Satellites 06101041 January 2004
Jim Rowe Errata: April 2004

PICAXE-18X 4-Channel Datalogger
Pt 1: Basic Module                                January 2004
Pt 2: Real Time Clock                             February 2004
Pt 3: Humidity Sensor, More Memory & An LCD       March 2004
Clive Seager Errata: August 2004

Solar-Powered Wireless Weather Station 07112041   December 2004
Uses PICAXE Nenad Stojadinovic

High Temperature Digital Thermometer With LCD: Performance
Electronics For Cars 2004
05car041 John Clarke Jaycar KC5376

PICAXE-Powered Thermostat & Temperature Display   February 2006
Michael Jeffery Errata: April 2006
Parts from Clinch Electronic Systems

Aquarium Temperature Alarm 03109061               September 2006       
Peter Smith

PID Temperature Controller                        July 2007
Leonid Lerner Refer Project August 2002

Data Logging Weather Station 04109071-2     Pt 1  September 2007
Glenn Pure                                  Pt 2  October 2007
Errata: November 2007 (EPE PCB718/719)

PICAXE Humidity Measuring Using The HopeRF HH10D  June 2009
Wayne Geary/Stan Swan

Temperature Logger & Controller 10101101    Pt 1  January 2010
Leonid Lerner                               Pt 2  February 2010

High-Temperature Thermometer/Thermostat 21105121  May 2012
John Clarke PCB & PANELS AVAILABLE FROM SC

----------------------------------------------------------------

22 ROBOTICS

Build A PC-Controlled Robot From Surplus Parts    November 1995
Tony Mercer Refer Stepper Motor article,
SC January 1994

A 2-Axis Robot With Gripper                       December 1997
Graeme Matthewson Oatley Electronics kit

The Line Dancer Robot 11385991                    May 1999
Andersson Nguyen Jaycar kit
Errata: August, September 1999

The Hexapod Robot                                 July 1999
Ross Tester RobotOz kit  

Autonomouse The Robot 08409991-2-3          Pt 1  September 1999
John Clarke                        Errata & Pt 2  October 1999

PICMAN 2000: A Programmable Robot 11101001        January 2000
Andersson Nguyen Altronics kit

Escape Robot Kit Altronics K1103                  August 2004
reviewed by Dave Kennedy

PICAXE: Programmable Robot 07209041               September 2004
Thomas Scarborough Errata: November 2004
(EPE PCB602)

Introducing Microbric: Programmable Robotics      November 2005

The Microbric Viper Robot DSE K1800               December 2005

----------------------------------------------------------------

23 MUSIC/MUSICAL INSTRUMENTS

Syntom: A Synthesised Tom-Tom                     May 1989
Leo Simpson

Low-Noise 4-Channel Guitar Mixer SC01101921       January 1992
Darren Yates DSE, Jaycar kits
See also Circuit Notebook February 1996

Digital Effects Unit Musicians/Guitar 01301951-2  February 1995
John Clarke Errata: March 1995
Jaycar kit

Guitar Headphone Amplifier 01305951               May 1995
John Clarke Altronics, DSE, Jaycar kits

A Low-Cost MIDI Adaptor For Your PC Or Amiga      July 1995
George Hansper

Sustain Unit For Electric Guitars 01302981        March 1998
John Clarke Altronics, Jaycar kits
Errata: July 1999

A Waa-Waa Pedal For Your Guitar 01307981          September 1998
John Clarke Altronics, DSE, Jaycar kits

Versatile Electronic Guitar Limiter 01308981      October 1998
John Clarke Jaycar kit

Theremin 01207001                                 August 2000
John Clarke Altronics, DSE K3015, Jaycar KC5295

Guitar Jammer 01110001                            October 2000
Leo Simpson/Peter Smith Altronics K5536, Jaycar

2-Channel Guitar Preamplifier 01111001      Pt 1  November 2000
Altronics K5340, Jaycar kits
Digital Reverberation Unit 01112001         Pt 2  December 2000
Combining Both Units In A Metal Rack Case   Pt 3  January 2001
John Clarke
Errata: January 2001, September 2002

MIDI-Mate: A MIDI Interface For PCs 01201011      February 2001
Jim Rowe Jaycar kit Errata: February 2003

Simple MIDI Expansion Box 01103011                March 2001
Jim Rowe

Guitar Tremolo Unit For Musicians 01104011        April 2001
John Clarke DSE, Jaycar kits

Direct Injection DI Box For Musicians 011080110   August 2001
John Clarke Altronics, DSE, Jaycar kits
Errata: September 2001

WidgyBox: Guitar Distortion Box 01105031          May 2003
Peter Smith Altronics K5541, Jaycar KC5353
(EPE PCB573)

MIDI Theremin 01204051-2                    Pt 1  April 2005
John Clarke Jaycar KC5410                   Pt 2  May 2005

MIDI Drum Kit 01211051-2 (EPE PCB653/654/657)                 
John Clarke Introduction                    Pt 1  November 2005
Putting It Together                         Pt 2  December 2005
Building The Sensors And Stand              Pt 3  January 2006
Installing And Running The Software         Pt 4  February 2006

Passive DI Box For Musicians                      May 2006
No PCB John Clarke

Mini Theremin 01207061                      Pt 1  July 2006
John Clarke Jaycar KC5426                   Pt 2  August 2006
Errata: December 2006 (EPE PCB670)

Versatile 4-Channel Guitar Mixer 01106071         June 2007
Jim Rowe Altronics K5353, Jaycar KC5448
(EPE PCB704) Errata: November 2007

PICAXE Plays Music! VMUSIC Driver                 July 2007
Clive Seager www.rev-ed.co.uk

PIC-Based Musical Instrument Tuning Aid 04107081  July 2008
Jim Rowe Altronics K1124 (EPE PCB756)

New Improved Theremin Mk.2 01203091               March 2009
John Clarke Jaycar KC5475 (EPE PCB795)
Errata: April 2009

USB MIDI-Mate 23110111                            October 2011
Jim Rowe Errata: June 2012
PCB+MICRO AVAILABLE FROM SC

----------------------------------------------------------------

24 MICROCONTROLLER ACCESSORIES & COMPUTER PERIPHERALS

PIC/AVR Programming Adaptor Board 24105121  Pt 1  May 2012
Nicholas Vinen PCB AVAILABLE FROM SC        Pt 2  June 2012
Notes: November 2012

USB Virtual Audio Test Instrument Interface       September 2012
24109121-2 Jim Rowe
PCB+FRONT PANEL AVAILABLE FROM SC

----------------------------------------------------------------

25 MEDICAL/HUMAN AND ANIMAL

Woofer Stopper: Dog Silencer 03105931             May 1993
Darren Yates Errata: June 1993

Remote Control For Woofer Stopper 03105932        June 1993
Darren Yates Oatley Electronics kit

Woofer Stopper Mk2: Dog Silencer 03102961         February 1996
John Clarke DSE, Jaycar kits
Errata: December 1996

TENS Unit For Pain Relief 04307971                August 1997
John Clarke DSE K3702 - discontinued

Stress-O-Meter 07111981                           October 1998
Rick Walters

Dog Silencer                                      July 1999
Branko Justic Oatley Electronics kit

The Heartmate: Heart Rate Monitor 04107011-2      July 2001
John Clarke Altronics K8050

Shut That Mutt: Dog Silencer Mk2                  April 2004
Branko Justic Oatley Electronics K112a
Errata: July 2004

USB Electrocardiograph 07102051                   February 2005
Jim Rowe DSE K3704 (EPE PCB643)

Pocket TENS Unit 11101061                         January 2006
John Clarke DSE K3705 PCB AVAILABLE FROM SC

HeartBeat CPR Trainer 04112061                    December 2006
Jim Rowe/Ross Tester

Cranial Electrical Stimulation Unit 99101111      January 2011
Robert Scott PCB AVAILABLE FROM SC

Barking Dog Blaster 25108121                      September 2012
John Clarke Altronics K4500
PCB+MICRO AVAILABLE FROM SC
Errata: December 2012

----------------------------------------------------------------
               
99 MISCELLANEOUS

Portable Electronics Workbench                    November 1987
Leo Simpson

Build Your Own Lightbox                           March 1988
Leo Simpson

Electronics Workbench For Home Or Lab             July 1992
Leo Simpson

Cranial Electrical Stimulation Unit 99101111      January 2011
Robert Scott PCB AVAILABLE FROM SC

A Vacuum Pump From Junk                           March 2011
Neno Stojadinovic

Magnetic Stirrer                                  December 2011
Michael Burton

----------------------------------------------------------------

CIRCUIT NOTEBOOK

DC Speed Control For Model Motors                 November 1987

Measuring The Tracking Of Dual Potentiometers     November 1987

How To Obtain -5V From A +5V Supply               November 1987

Frequency Comparator With Visual Display          November 1987

Low Power RAM EPROM Emulator                      December 1987

Simple Transistor Oscillator                      December 1987

Courtesy Light Delay Switch                       December 1987

Voltage Regulator For 12V Alternators             December 1987
            
Sequential Lamp Flasher For Cars                  January 1988

High Impedance Op Amp With Input Protection       January 1988

Crowbar Over-Voltage Protection For               January 1988
Power Supplies

Substituting Electrolytic Capacitors              January 1988

Thermatic Fan Timer For Cars                      February 1988

Dynamic Noise Reduction For Cassette Players      February 1988

El Cheapo Car Burglar Alarm                       February 1988

Higher Power Car Stereo Conversion p94 Ask SC     February 1988
Ref Car Stereo For Your Home, November 1987

Bridge Circuit For Amplifier Modules              February 1988
p95 Ask SC See also EA June 1985

Adjustable Load For Power Supplies                March 1988

Synchroscope For Frequency Comparison             March 1988

CRO Probe Modification                            March 1988

Precision Reset For Microprocessors               March 1988

How To Dim Fluorescent Lights p95 Ask SC          March 1988

High Speed Pulse Amplifier                        April 1988

Headphone Noise Monitor For Power Amplifiers      April 1988
            
Quiz Game Using A CMOS Latch                      April 1988

VU Meter For Tape Dubbing                         April 1988

How To Stretch Pulse Widths p94 Ask SC            April 1988

Voltage & Current Metering For Power Supplies     May 1988

Improvements For Modem End-Of-File Indicator      May 1988

High-Q Notch Filter                               May 1988

Dual Power Circuit With Back-Up                   June 1988
Battery Indicator

Brighter Flashing Lamp For Alarms                 June 1988
            
Flashing Pilot Lamp                               June 1988

Fuel Cut-Off Solenoid For Cars                    July 1988

Telephone Ring Simulator                          August 1988

DC Stereo Volume Control                          August 1988

Digital Lissajous Frequency Comparator            August 1988

National Semiconductor's LM12 150W Op Amp         September 1988

Off Peak Indicator For Hot Water Systems          October 1988

Audio Overload Detector                           October 1988

Long Interval Timer                               October 1988
            
Video Distribution System p97 Ask SC              October 1988

Self-Oscillating Detectors Explained p98 Ask SC   October 1988

Knightrider LED Scanner Jaycar kit                November 1988

12-240V 60VA Inverter                             November 1988

Volume Control For Power Amplifier p102 Ask SC    November 1988

Microphone Preamp Circuit p103 Ask SC             November 1988

Charger For 12V Gel Batteries                     December 1988

Constant Current Nicad Charger                    December 1988

Pulse Charger For Dry Cells                       January 1989

200-250mA DC Electronic Fuse                      January 1989

RS232 To RS422 Adaptor                            January 1989

Simple Binary Encoded Keypad                      February 1989

Crystal Oscillator Using A CMOS 555               February 1989

Alternative Override For Car Safety Light         February 1989
Ref Project November 1988, 20EPC

Tacho Connection For HEI p93 Ask SC               February 1989

Photo-Interruptor For Digital Counter             March 1989
               
Schmitt Trigger Using Discrete Transistors        March 1989

Wide Bandwidth Video Amplifier                    March 1989

High Impedance 1W Amplifier                       March 1989

Keyboard Sound Improver                           April 1989

Keypad Alarm For Car Security                     April 1989

Relay Output For Door Minder                      April 1989
Ref Project February 1988

Leading Zero Blanking For Digital Speedos         May 1989

Thermostat For Cooling Fans                       May 1989
               
Bit Saver For Soldering Irons                     May 1989

Power Supply For Walkman Radios                   June 1989

X-Y Light Source Plotter                          June 1989

Tone Decoder Input Control Circuit                July 1989

Using Centre-Zero Meters In Power Supplies        July 1989

Low Cost Locker Alarm                             July 1989

Channel Switch For DSE UHF Converter              August 1989

Flasher Unit For Cars                             August 1989

Fuse-Fail Alarm For Cars                          August 1989
               
Car Battery Voltage Monitor                       August 1989

Using An Impulse Tacho With The High Energy       20EPC
Ignition System p109 Ask SC                       August 1989

Sawtooth/Triangle Waveform Generator              September 1989

Digitally Controlled Stereo Volume Control        September 1989

Siren & Flash Generator For Toy Cars              October 1989

Balanced Outputs From A Single Supply             October 1989

Timer For Motor Driven Cameras                    October 1989

Walkman Car Stereo Amplifier                      November 1989

Traffic Light System For Model Railways           November 1989

4-Channel Mixer With Effects Send                 November 1989

High Current Intelligent Charger                  December 1989

Exhaust Temperature Alarm For Boats               December 1989

Self Cycle Bilge Pump Control                     December 1989

El Cheapo Buffer Amplifier                        December 1989

Stereo FM Microphone Transmitter                  December 1989

6V Version Of Brake Lamp Flasher p117 Ask SC      December 1989
Ref project April 1989

Quiz Game With Light Chasers                      January 1990

High & Low Boost For PA Loudspeakers              January 1990

Clipping Indicator For Stereo Amplifiers          January 1990

Electronic Speedo                                 February 1990

Parametric Equaliser                              February 1990

Simple Transistor Beta Tester                     February 1990

30-Second Bilge Pump                              February 1990

100-Sequence LED Chaser                           March 1990

Pulse Width Modulated Signal Compressor           March 1990
            
Bilge Pump With 15s Sloshing Delay                March 1990

Pulse Width Modulated Signal Expander             April 1990

Low Cost Alarm Status Indicator                   April 1990

Single Supply Instrumentation Amplifier           April 1990

Delay Circuit For Intermittent Wipers             May 1990

24V Gel-Cell Battery Charger                      May 1990
Ref project March 1990

Adjustable Boxing Timer                           May 1990

2-Phase Oscillator Uses A Flipflop                May 1990

Antenna Control In Holden Cars                    June 1990

Gutsy 220V Power Supply                           June 1990

40W Bridged Power Amplifier                       June 1990

Driving Stepper Motors From A                     July 1990
Parallel Printer Port

Switching Mains With Your Computer                July 1990

One-Chip DC Volume Control                        July 1990

Electronic Time Delay Switch                      August 1990

Effective In-Circuit Battery Tester               August 1990

Remote Control For Early Rank Arena TVs           August 1990
            
Overvoltage Protection For Power Supplies         August 1990

2.4GHz Prescaler For 1GHz Frequency Meter         September 1990
see Project November 1987-January 1988

Low Cost Battery Minder                           September 1990

Traffic Lights For Model Railways                 September 1990

Electronic Control For Radiator Fan               September 1990

1Hz Timebase With Variable Pulse Width            September 1990

Expanded Scale 11.6-12.6V Voltmeter               October 1990

Low Cost Mains Frequency Indicator                October 1990
            
Obtaining -5V From A +5V Supply                   October 1990

Digital Staircase Waveform Generator              October 1990

Low Frequency Sample & Hold Circuit               November 1990

Single Chip Low Battery Alarm                     November 1990

FM Stereo Test Tone Transmitter                   November 1990

Current Limiter For 240VAC Lamps                  December 1990

Climate Controller For A Greenhouse               December 1990

Constant Volume Amplifier                         January 1991

Diode Test Adaptor For Multimeters                January 1991

Precision Timer Goes To 46.6 Hours                January 1991

Wide Range Inductance Meter                       February 1991

Mid-Frequency Tone Control                        February 1991

Water/Coolant Level Alarm For Car Radiators       February 1991

Audio Filter For HF Receivers                     March 1991

3MHz Digital Frequency Counter                    March 1991

Direct Coupled Sniffer Probe                      March 1991
              
Simple Metal Detector                             March 1991

300Hz-3kHz Audio Filter                           April 1991

Simple IR Detector Checks Remote Controls         April 1991

Bare-Bones Dual Power Supply                      April 1991

Lightning Distance Meter                          May 1991

Toy Car Motor Controller                          May 1991

Switchmode Power Supply                           June 1991

Discharger For Nicad Battery Packs                June 1991

Shunt Controller For Solar Panels                 June 1991
              
3-Team Quiz Adjudicator                           July 1991

Analog Data Logging Via A PC's Parallel Port      July 1991

Leading Zero Suppression For                      August 1991
The Capacitance Meter

Automatic Controller For Sullage Pumps            August 1991

Low Distortion Sinewave Oscillator                August 1991

Soft Start For 240V Lamps                         September 1991

Voltage Regulator For Alarm Backup Battery        September 1991

Simple Nicad Charger With 16-Hour Timer           September 1991
              
How To Dim Fluorescent Lights p94 Ask SC          September 1991

Dual Tracking Power Supply Uses Cheap Parts       October 1991

DC Offset Canceller For Amplifiers                October 1991

Battery Charging For Garage Door Controller       October 1991
Ref Project March/April 1991

3-Way Quiz Game Uses Relays & Diodes              November 1991

Low-Cost Variable Power Supply                    November 1991

Speed Sensitive Direction Switch                  November 1991

Power Supply For Portable Valve Radios            November 1991
              
Budget Burglar Alarm System                       December 1991

Expandable 3-Way Quiz Game                        December 1991

Power Supply For Flash Gun                        December 1991

12 LED Voltmeter                                  December 1991

Signalling For Model Trains                       January 1992
.                                                 14MRP

Automatic Night Light Timing Circuit              January 1992

Alarm Dialler uses An EPROM                       February 1992

8-Channel ADC For PCs                             February 1992

Courtesy Light Delay For Cars                     March 1992

Adjustable 20V Power Supply                       March 1992

Traffic Lights For Model Train Layouts            March 1992

Using Your Games Port For Data Input              March 1992

Electronic Ignition & Positive
Chassis Vehicles p91 Ask SC                       March 1992

Scanning Facility For A CB Radio                  April 1992

EPROM-Based Stepper Motor Driver                  April 1992

Low Cost Audio Oscillator                         May 1992

Bulletin Board Watchdog                           May 1992

Airconditioning Override With Kickdown Switch     May 1992

Nicad Fast Charger Timer                          May 1992

Loudspeaker Protector has Power-On Delay          June 1992

Courtesy And Headlight Delays For Cars            June 1992

Chocolate Wheel With Fixable Numbers              June 1992

Sequential Combination Lock                       July 1992

Modification To Headlight Controller              July 1992

BCD & Decimal To 7-Segment Decoding With          July 1992
An EPROM

Musical Chime Generator                           August 1992

12VDC To 240VAC Inverter For Small Appliances     August 1992

High Performance Drill Speed Controller           August 1992
            
Simple Lap Timer For Slot Cars                    August 1992

Relay Output For Car Reversing Alarm p92 Ask SC August 1992
Ref project January 1989

Traffic Lights For Model Train Layouts            September 1992

Automatic Electric Blanket Controller             September 1992

Tester For 2-Input Logic Gates                    September 1992

Cross-Coupled FET Mixer                           September 1992

Automatic Soldering Iron Timer                    October 1992

Stutter Trigger For An Audio Strobe               October 1992
            
Self-Contained Autofire Module For Electronic     October 1992
Games

Reversing Light Chaser For 12V Lamps              November 1992

A Low Cost Crystal Checker                        November 1992

2-Chip Electronic Blackjack Game                  November 1992

Timer Safeguards Rechargeable Cells               November 1992

Board Game Countdown Timer                        December 1992

Power On/Low Battery Indicator                    December 1992

High-Current 0-20V Power Supply                   December 1992
Errata: January 1993

LED VU Scanner Display                            January 1993

Parking Lights Reminder                           January 1993

Cable Tester With LED Indicators                  January 1993

Simple Tester For IR Remote Controls              January 1993

Horn Blower For Mobile Telephones                 February 1993

Square Wave Frequency Doubler                     February 1993

Simple Way To Make PC Boards                      February 1993

Robotics Interface For PCs                        February 1993

A 20-Metre Director Conversion Receiver           March 1993
            
Blown Fuse Indicator                              March 1993

Simple 2-Input Logic Gate Identifier              March 1993

Breakerless Pick-Up For Car Ignition              April 1993

Dynamic Noise Reduction Circuit                   April 1993

VFO Controlled Transmitter For 80 Metres          April 1993

Interface For The LCD Panel Meter                 May 1993
see Project September 1992

Seven Day Hose Controller                         May 1993

Add-On Circuit For A Sidereal Clock               June 1993
            
Battery Monitor For Solar Chargers                June 1993

Refinement For The Interphone Exchange            June 1993

Repeater Time-Out Indicator                       June 1993

Discrete Step-Down Voltage Converter              June 1993

Battery Charge Status Monitor                     July 1993

Single-Chip Combination Lock                      July 1993

Pulser Probe For TTL & CMOS                       July 1993

Low-Cost Piezo Screamer Siren                     July 1993

Increasing The Output Of A
3-Terminal Regulator p93 Ask SC                   July 1993

Low-Cost Isolation Amplifier                      August 1993

Low Distortion Oscillator                         August 1993

Phase Adapter For Digital Multimeters             August 1993

Handy Hint Pulsing Beeper                         August 1993

AND or OR Gates With Diodes p92 Ask SC            August 1993
Ref Quiz Game Adjudicator, July 1993

Wide Range Phase Control                          September 1993

Regulator For Solar Panels                        September 1993
               
Microcontroller Timer                             September 1993

RF-Linked IR Remote Control Extender              October 1993

Electronic Mousetrap Catches 'Em Alive            October 1993

Electronic Starter For Fluorescent Lights         October 1993

Low-Cost Controller For Model Trains              November 1993

6/12V Gel Cell Charger                            November 1993

Photographic Flash Meter                          November 1993

Power Supply Pre-Regulator Circuit                November 1993

Single Chip Touch Switch                          December 1993

240V Motor Speed Control                          December 1993

Amended Pulser Probe see July 1993                January 1994

Beta Measurements With An Analog Multimeter       January 1994

Induction Motor Speed Controller                  January 1994

Single-Pot Wien Bridge Oscillator                 January 1994

Using Two Train Controllers To Operate            February 1994
One Section

Replacing Selenium Cells With Solar Cells         February 1994

Digital Tachometer & Dwell Angle Meter            February 1994

Resistance & Capacitance Meter                    March 1994
               
Adding Latched Outputs To The IR Train Controller March 1994
Ref SC April, May, June 1992

Low Power Voltage Booster                         March 1994

Simple Quiz Game Adjudicator                      March 1994

Cockroft-Walton Voltage Multiplier p93 Ask SC     March 1994

Battery-Life Indicator For Radio Microphones      April 1994

Block Signalling For Model Trains                 April 1994

Simple 4-Step Voltage Comparator                  April 1994

Debounce Circuit For Counter Input p92 Ask SC     April 1994
Ref 3-Digit Counter Module, September 1990
               
Battery Voltage Indicator For Cars                May 1994

Light Meter Adaptor For A DMM                     May 1994

Delayed Reset For PCs & Compatibles               May 1994

Six-Way Decision Maker Uses Two ICs               May 1994

Optical Pickup For HEI p92 Ask SC                 May 1994

Variable Constant Current Load                    June 1994

RF Actuated CW Sidetone Unit                      June 1994

Photographic Lightmeter Adapter                   June 1994

Discrete Monostable Multivibrator                 June 1994

Positive To Negative DC Inverter                  July 1994

Floating Constant Current Limit                   July 1994

Tester For IR Remote Controls                     July 1994

Analog To Digital Interface Circuit               July 1994

Theft Protection For Automatic Cars               August 1994
                                  20EPC

Sensitive Lightmeter For The Darkroom             August 1994

Low-Cost LED Level Display                        August 1994

Optoelectronic Pickup For Ignition Systems        August 1994
Ref High Energy Ignition Project, May 1988        20EPC

Tape Equalisation For Preamp p90 Ask SC           August 1994
Ref Universal Preamplifier, April 1994

Timer For Security Lights                         September 1994

Tester For Radio Control Servos                   September 1994

Automotive Voltage Regulator                      September 1994
                                  20EPC

Test GPO For Workshops                            October 1994

Flashing Battery Monitor                          October 1994

PC Alert - A Simple Watchdog Alarm                October 1994

Auto-Shutoff For Battery Circuits                 October 1994

Super Bright LED Brake Light Array                November 1994
Errata: December 1994

12-24V Circuit Tester For Cars & Trucks           November 1994
                                  20EPC

Display Dimmer For LED Clocks                     November 1994

Low Cost Photo Timer                              November 1994

Power Supply For Subsidiary Amplifier             December 1994

Rotary Encoder Decoder                            December 1994

Simple 1-Chip Logic Probe                         December 1994

6V To 12V Converter                               December 1994
Ref 12V SLA Battery Charger, July 1992            20EPC

Using 3-Wire Railway Crossing Lights              January 1995

Electronic Guitar Tuning Fork                     January 1995

Level Translator For PC Games Port                January 1995

Analog Multiplier Uses Transconductance Amp       February 1995

Thumb Wheel Selection For Pattern Generator       February 1995
Ref SC Nov/Dec 1991

Pump Control System Uses LDT                      March 1995

Adjusting Pulse-Train Mark-Space Ratio            March 1995

Buzzer For Infrared Security Light p91 Ask SC     March 1995

48V Charger For SLA Batteries Ref SC July 92      April 1995

Tachometer Pick-Up For Diesel Engines             April 1995
Ref SC August 1991

Temperature Controller For Home Brewers           April 1995

Digital Readout For A Weighbridge                 May 1995

Balanced Microphone Preamplifier Incorporating    May 1995
"Phantom Power" Ref Project p38 April 1995

Automatic Charger/Discharger                      May 1995

Ask SC p93: Using A Multi-Tap Transformer With    May 1995
The Walkaround Throttle For Model Railroads
Errata: August 1995
               
Emergency Lighting Circuit Has Charger            June 1995

Expanded Scale Voltmeter For Cars                 June 1995

Low Cost Nicad Zapper Ref SC August 1994          June 1995

Simple Probe Detects Logic Levels & Pulse Trains  June 1995

Stereo Signal Switcher For Testing                June 1995

Dummy Printer For Testing Parallel Ports On A PC  June 1995

Encoder For Surround Sound Decoders               July 1995

Car Radiator Water/Coolant Alarm For Positive     July 1995
Earth Vehicles Ref Project June 1994
               
Relay Driver Board With High Voltage Supply       August 1995
Oatley Electronics kit

Automatic Antenna Controller For Cars             August 1995

Rev Limit Indicator For Rally Cars                September 1995

Car Courtesy Light Monitor & Extender             September 1995

Touch Sensitive Switch Uses A Single IC           September 1995

Speed Controller For Small Motors In Models       October 1995

Adding Tail Lamps To Guards' Vans                 October 1995

Low-Cost Stepper Motor & Controller               October 1995
               
Ask SC p93: DiscoLight With Neon Lighting         October 1995
Ref Project July/August 1988

Weekly Rubbish Reminder                           November 1995

Simple Solar Tracker                              November 1995

Multi-Way Switching For 240VAC Lighting           November 1995

Ignition Coil/Condenser Tester                    November 1995

Campervan Inverter Controller                     December 1995

Simple LED Chaser Using Transistors               December 1995

Optical Tachometer Has Digital Readout            December 1995
Ref SC May 1988 & SC December 1993

Automatic Level Control For Line Signals          January 1996

Bilge Pump Timer Uses A Mercury Switch            January 1996

PWM Speed Controller                              January 1996

DC Amplifier For A Centre-Zero Meter              January 1996

Moisture Monitor For Pot Plants                   January 1996

Reluctor Circuit For High Energy Ignition         February 1996
Ref SC May 1990

Intercom Uses Surplus Telephones                  February 1996

4-Channel Mixer Modifications                     February 1996
Ref SC January 1992
               
Model Railway Level Crossing Control              March 1996

Binary Counting Demonstrator                      March 1996

Charge Controller For A Transceiver               March 1996

Precision Timer Uses Cheap Crystal                March 1996

Brake Pedal Alarm Circuit                         March 1996

Body Filler Depth Detector                        April 1996

Micropower Low-Voltage Indicator                  April 1996

RS232 Modem Switcher                              April 1996

Single Rail Operation For The TDA1514             April 1996
               
Reluctor Version Of Programmable Ignition         May 1996
Ref Project March 1996

Larger Search Coils For The Metal Locator         May 1996
Ref Project May 1994

0-18V Power Supply With Current Limiting          May 1996

Electrolytic PC Board Etcher                      May 1996

Bridge Operation For LM3886 Stereo Module         June 1996
Ref Project February 1995

Stereo Preamplifier With Selectable Gain          June 1996
Ref Project April 1994

Novel Modulator For Signal Generators             June 1996

Ask SC p92: Remote Control For Dolby Decoder      June 1996
Ref Project November/December 1995

Ask SC p93: Loudspeaker Protection/Compression    June 1996
Ref ALC Project March 1996
              
Multi-Cell Charging With The TEA1100              July 1996

Random Number Generator                           July 1996

0-16V 15A Power Supply With Current Limiting      July 1996
Errata: September 1996

Tone Burst Source For Loudspeaker Testing         August 1996

Cordless Telephone Ring Tone Booster              August 1996
               
Low Cost Monitor Amplifier For 32 Ohm Headphones  September 1996

Pulse Stretcher For Printer Signals               September 1996

Digital Display For The Geiger Counter            September 1996
Ref Projects Sept 90 & Oct 95

Ask SC p94: Millivoltmeter Drive Modification     September 1996
Ref Project August/September 1988

Muting The LM3886 Module                          October 1996
Ref Projects March 94 & Feb 95

Printer Port Zero Voltage Detector                October 1996

6V Motor Speed/Direction Controller               October 1996

Swimming Pool Lap Counter                         November 1996

Obtaining Balanced & Isolated 9V Supply Rails     November 1996

Thermostatic Fan Controller                       November 1996

9V Nicad Battery Saver/Regulator                  November 1996

Overload Protected Power Supply                   December 1996

Adding 1/4 Stops To The Photographic Timer        December 1996
Ref project April 1995

VCO Has Constant Mark/Space Ratio                 December 1996

A Low Cost Darkroom Lamp                          January 1997

Nicad Battery Discharger Has Capacity Indication  January 1997

AC Power Supply For Photographic Flashgun         February 1997

Precision Analog Multiplier                       February 1997

Audible Headlight Reminder                        March 1997

Low Voltage Drop Bridge Rectifier                 March 1997

Automatic Pump Timer/Controller                   March 1997

12V PA System Has A Balanced Mic Input            April 1997

Switching Circuit For The M65830P Digital Delay   April 1997

12V Or 24V Lamp Flasher                           April 1997

Passive Network Reduces DC Offset Effect          May 1997

SCR Pre-Regulator Circuit                         May 1997

Latched Outputs For IR Remote Control             May 1997
Ref Project February 1996

Ask SC p90 Master/Slave For Fast Clocks           May 1997
Ref Project December 1996

Low-Cost Telephone Intercom                       June 1997

Low-Loss Solar Battery Charger                    June 1997

Audio Signal Tracer With Inbuilt Amplifier        June 1997
               
JFET Tester Adaptor For DMMs                      July 1997

Cheap Heatsink Temperature Sensor                 July 1997

Single Gate Oscillator                            July 1997

Timer With 240VAC Switching                       August 1997

Pistol Target Frame Timer                         August 1997

Thermatic Fan Monitor                             September 1997

Addressing The 16s Message Recorder               September 1997
Ref Project July 1993

Intercom Uses Touch Phones                        September 1997

3-Aspect Signalling For Model Railways            October 1997

Low Dropout 5V Regulator                          October 1997
Errata: November 1997  

Using The 12/24V Speed Controller As A Dimmer     October 1997
Ref Project June 1997

Single Supply Version Of LM3876/LM3886 Modules    November 1997
Ref Projects March 1994 & February 1995

Square Wave Pulse Generator                       November 1997

Changing The Neon Tube Modulator                  November 1997
Ref Project May 1997

Ask SC p92 High Energy Ignition: Positive         November 1997
Chassis Points Version Ref Project May 1988
Errata October 1998

Binary Guessing Game                              December 1997

Waveform Generator Ref Project July 1997          December 1997

Monster Servo Uses A Windscreen Wiper Motor       December 1997

Audio Signal Injector Ref Project June 1997       December 1997

Ask SC p90 Preventing Solenoid Burnout            December 1997

Programmable Multispark CDI                       January 1998
Ref Project September 1997

Versatile Laser Beam Door Minder                  January 1998

12/24V Courtesy Lamp Extender For Cars            January 1998

Solid State LED Oscilloscope                      January 1998

Electronic Circuit Breaker                        February 1998

Simple Op Amp Hybrid                              February 1998

Quasi-Peak Detector                               February 1998

RF Noise Generator                                March 1998

240VAC Powered Strobe Lamp                        March 1998

Cheap Ammeter Using LEDs                          March 1998

DC Amplifier For CRT Deflection                   April 1998

Engine Water Temperature Gauge                    April 1998

Nicad Cell Tester & Discharger                    April 1998

Deluxe LED Tester Identifies Leads                May 1998

Torch Battery Recharger                           May 1998

Linear Voltage Controlled Oscillator              May 1998

Current Indicator For 12V Battery Chargers        June 1998

Charging Lithium Ion Cells                        June 1998

Code Access Control                               June 1998

Battery Capacity Meter Circuit                    June 1998

Bargraph Auto Tachometer                          July 1998

Phase/Program Indicator                           July 1998

N-Channel FET Tester                              July 1998

1.5V DC-DC Converter                              July 1998

LOPT/Shorted Turns Tester                         August 1998

Low Voltage Drop Bridge Rectifier                 August 1998

Thermal Protection For Power FETs                 August 1998

Stepper Motor Driver                              August 1998

High Frequency Driver Protection                  August 1998

Ask SC p91 Optoelectronic Ignition                August 1998
Ref High Energy Ignition Project, May 1988

0V Output For Adjustable 3-Terminal Regulators    September 1998

Simple Relay Voltage Booster                      September 1998

Automatic Reversing For Model Trains              September 1998

DVM Adaptor For High Frequency AC                 September 1998

Independent Messages From Sound Recorder          October 1998

Frequency Doubler For A Cruise Control            October 1998

Charger Controller For An Outboard Motor          October 1998

Fuel Injector Driver For Added Power              October 1998

Regulator For A Car Battery Charger               November 1998

DTMF Radio Alarm System                           November 1998

Improved Relay Voltage Booster                    December 1998

LED Indication For 12V SLA Charger                December 1998

Speed Alarm & Digital Speedometer                 December 1998

9V Battery Checker                                January 1999

Timed Audible Alarm                               January 1999

Balanced Input & Bridging Module                  January 1999

PC Stake Crimper                                  January 1999

Low Current Shunt Regulator                       January 1999

24V Output For Trickle Charger                    February 1999
Ref Project October 1998

Timed Audible Alarm                               February 1999

Temperature Controlled Fan For Power Amplifiers   February 1999

Bedside Lamp/Tape Recorder Timer                  February 1999

Optical Pickup For 5-Digit Tachometer             March 1999
Ref Project October 1997

PC-Controlled LED Matrix Display                  March 1999

12V Charge Indicator                              March 1999

Solid State Relay Circuit                         March 1999

Using The LED Ammeter On 24V                      March 1999
Ref Project January 1999

Simple Alarm Circuit                              March 1999

You Have Mail In Your Letterbox                   April 1999

Relax Your Brain With Just Two LEDs               April 1999

Random LED Flasher                                April 1999

9V Battery Monitor                                April 1999

Simple Tester Checks Transistors & Continuity     April 1999

Add Bass Harmony To A Guitar                      May 1999

Add Remote Control To An Old VCR                  May 1999

Low Frequency RF Preamplifier                     May 1999

Simpler Metering Circuit For Capacitance Meter    May 1999
refer Project February 1999

Logic Probe With 7-Segment Display                June 1999 & ETB

Bistable Motor Switch                             June 1999

PC-Controlled Function Generator                  June 1999

Extra Reversing Light For Older Cars              June 1999

DTMF Decoder And 1Hz Timebase                     July 1999

Auto Nicad Charger With Float                     July 1999

Rev Limiter Modification For Points Distributors  July 1999
refer Project April 1999

Mains Powered Remote Control Tester               July 1999

Simple 3-Digit Frequency Counter                  August 1999

Burglar Alarm For Continuous Security             August 1999

One Chip Audio Preamplifier                       August 1999

Dry Cell Battery Checking                         September 1999

Foolproof Audio Compressor                        September 1999

Surveillance Lights With Buzzer                   September 1999
Errata: October 1999  

Audio Distribution Amplifier                      October 1999

Automotive Fuse Monitor                           October 1999

Low Cost SLA Battery Charger                      October 1999

18W Fluorescent Light Inverter Uses Ferrite Rod   October 1999

Refinements To The PC Monitor Checker             November 1999
Refer project August 1999 Errata: February 2000

Simple Christmas Light Tester                     November 1999

Simple Lights-On Warning                          November 1999

Negative Line Switching For Daytime Lights        November 1999
For Cars refer Project August 1999

Reverse Battery Protection With Low Voltage Drop  December 1999

Power-On Muting For PC FM Tuner                   December 1999
refer Project June 1999

Backup Battery For AC-Powered Cordless Phones     December 1999

Battery Charging From A 1V Or 2V Solar Panel      January 2000

TTL Decision Maker                                January 2000

Paralleling The Output Of 3-Terminal Regulators   January 2000

Buffered Virtual Ground Generator                 January 2000

Using A Photo-Interrupter As A Train Detector     February 2000

Monitor For 12V SLA Batteries                     February 2000

How To Cut Clean Holes In Plastic Front Panels    February 2000

12V Fan Controller For Lower Noise                February 2000

Constant Current Load For Power Supply Testing    February 2000

PC Printer Port Controls I-V Curve Tracer         March 2000

Adding LED Indication To 12V Trickle Charger      June 2000
refer Project October 1998

Speed Controller For 240VAC Universal Brush-     June 2000
Type Motors

Low-Cost Logic Indicator For PICs                 June 2000

4-Wire Milliohm Tester For DMMs                   July 2000

Constant Voltage Charger Uses LM317               July 2000

Fine & Coarse Power Supply Control                July 2000

Soldering Iron Time-Out                           August 2000

Split Supply With Low Quiescent Current           August 2000

Off-Hook Indicator Has Better Visibility          August 2000
refer Project January 2000

Mains Power For Battery-Operated Clock            August 2000

Improved Engine Immobiliser Uses SCR              September 2000

A Really Simple Transistor Tester                 September 2000

Adding A Timer To The NiCd Discharger             September 2000

Different Colours From A Green LED                September 2000

Opto-Electronic Version Of High Energy Ignition   October 2000
refer Project June 1998 Errata: November 2000

Water Level Indicator                             November 2000

Do-It-Yourself Car Battery Charger                November 2000

Hi/Lo Pulse Indicator Uses A 7-Segment Display    November 2000

Multi-Station Intercom Uses CB Microphones        December 2000
refer projects Champ Feb 94 & PreChamp July 94

Solar-Charged Battery Regulator                   December 2000

Model Aeroplane Navigation Strobe/Battery Level   January 2001
Indicator

Economy Mic Preamp Has Phantom Power              March 2001

Shaft Rotation Indicator                          March 2001
refer Speed Alarm, November & December 1999

Metering Circuit For Sine/Square Generator        May 2001
refer project February 2000

Crystal Timebase For Capacitance Meter            May 2001
refer project May 1990

Convert A Momentary Pushbutton To Alternate       June 2001
Action

Precision Voltage Calibrator                      June 2001

Running A LED From 240VAC                         June 2001

Computer Controlled Chaser                        June 2001

Vibrating VU Meter                                August 2001

Digital Trainer Using 4000 Series Chips           August 2001

Thermistor Addition For Heat Controller           August 2001
refer project July 1998

Switchable Output Crystal Oscillator              September 2001

Low Ohms Adaptor For DMMs Based On                September 2001
An LM317 Regulator Errata: December 2001

LED Number Display Uses Parellel Port             September 2001
Errata: November 2001

Sound Source Locator Uses PreChamp                October 2001
Refer project July 1994

Building A Synchronous Clock                      October 2001
Errata: November 2001

Blown Fuse Indicator                              October 2001

Alternative Circuit For A White LED Torch         November 2001
Refer project December 2000

Central Locking Interface                         November 2001

Temperature-Controlled Soldering Iron             November 2001

Using A LED As A Light Sensor                     November 2001

Analog & Digital Modulation For Laser Pointers    December 2001

Measuring The Current Drain Of Devices With       December 2001
DC-DC Converters

Regulator For Solar Battery Charger               January 2002

Simple Time Switch For Battery-Operated Projects  January 2002

Door Monitor For A Dog                            January 2002

Electric Field Proximity Switch                   January 2002

White LED Torch Circuit Uses Flash Parts          January 2002
Ref Project December 2000

NTSC-PAL TV Signal Identifier                     February 2002

Grand Prix Starting Lights                        February 2002

Tracking Down Scratchy Pots                       February 2002

Low Cost Battery Condition Indicator              February 2002

Heart Rate Monitor                                February 2002

Pump Controller For Solar Hot Water System        March 2002

Battery Equality Monitor                          March 2002

Component & Voltage Tester                        March 2002

Solar Battery Protector                           April 2002

Radio Controlled Electronic Flash                 April 2002

Luminescent Generator                             April 2002

Neon Flasher Runs From 3V Supply                  April 2002

Isolation For PC Boards In Cars                   April 2002

Protection For White LED In Torch                 May 2002
Refer Project December 2000

Relative Field Strength Meter For A DMM           May 2002

Constant Current LED Drive                        May 2002

Loudspeaker Protector Monitors Current            June 2002

Modification To Smoke Alarm ref Jan/Feb 97        June 2002

Body Charge Detector                              June 2002

Preamp Stage For Ceramic Phono Cartridge Or       June 2002
Violin Pickups

Cheap AC Current Measurement                      July 2002

Low-Cost Dual Power Supply                        July 2002

Quick Counter For Young Children                  July 2002

Switchmode Constant Current Source                July 2002

Passive RIAA Preamplifier                         July 2002

Up/Down Timer For A Power Antenna                 July 2002

Soldering Iron Tip Preserver                      August 2002

TV Relative Signal Strength Meter                 August 2002

Simple Card Access Control System                 August 2002

Petrol/Gas Switch For A Pajero                    August 2002

Ultra Low Drop Linear Voltage Regulator           September 2002

Simple Logic Probe                                September 2002

12V Car Battery Charger                           September 2002

Battery Tester For Deaf-Blind Persons             September 2002

Awaken The Deaf Loud Alarm For Clocks             September 2002

DC Automotive Tester With Current Probe           October 2002

Winter Charge Booster For 12V Car Batteries       October 2002

Triple-LED Version Of Torch                       October 2002
Ref Project December 2000, Notebook January 2002
and May 2002

One Of Nine Sequencer                             October 2002

Headlight Controller For Motor Bikes              October 2002

Touch Enabled Fuel Cut-Off For Diesels            October 2002

Simple AM Transmitter Uses Crystal Ear Piece      October 2002
As Microphone

Battery Status Indicator                          October 2002

Smoke Alarm Battery Life Extender                 October 2002

Speaker-Headphone Switch For PCs                  November 2002

Simple Cat.5 Network Tester                       November 2002

Using AC For LED Christmas Lights                 November 2002

DC Motor Speed Controller                         November 2002

Short Circuit Protection For Balanced             November 2002
Supply Rails

Table Reminder Uses Watch Module                  November 2002

Traffic Lights For Model Cars Or Railways         December 2002

LED Torch Uses Blocking Oscillator                December 2002

AFX Slot Car Lap Counter                          December 2002

Simple BFO Metal Locator                          December 2002

Capacitor Leakage Adapter For DMMs                December 2002
Errata: February 2003

Simple AM Radio Receiver                          December 2002

Motor Speed Control With Protection               January 2003

Magic Wand For 3-Way Control                      January 2003

Automatic Tape Control For Display Stand          January 2003

Filter Reduces Supply Ripple By 40dB              January 2003

12V Lead Acid Battery Desulphator                 February 2003

Low Supply Rail Detection Circuit                 February 2003

Fifth Channel For Code-Hopping Remote Control     February 2003
Refer Project July 2002

Simple Headlight Reminders                        February 2003

In-Situ Battery Test Probe                        February 2003

Automatically Armed Engine Immobiliser            February 2003

Automatic Headlight Switch                        March 2003

Simple Universal PIC Programmer                   March 2003

Bat Detector Picks Up Ultrasound                  March 2003

Junkbox-Parts Oven Timer                          March 2003

Super-Regenerative Receiver For AM & FM           April 2003

Neon Scintillator With 300V Up-Converter          April 2003

LED Carnival Game                                 April 2003

Low Cost Pistol Shooting Game                     April 2003

Simple SLA Battery Charger                        April 2003

Single Entrance Vehicle Counter                   May 2003

Test Interface For PC Soundcards                  May 2003
refer project August 2002

White LED Torch Driver Circuit                    May 2003

Adding Outlets To An Irrigation Controller        May 2003

Computer Data Cable Tester                        June 2003

Inductive Speed Sensor For Cars                   June 2003

Digital Thermometer With LCD Readout              June 2003

Low Battery Indicator                             June 2003

555 Timer Circuit With Variable On/Off Times      June 2003

High Current Battery Discharger                   June 2003

High Current Low-Dropout Regulator                June 2003

Infrared Remote Receiver Has Four Outputs         July 2003

Wide-Range Inductance Meter                       July 2003

Simple Circuit Charges Up To 12 NiCds             July 2003

Simple Knock Alarm With Piezo Sensor              July 2003

Gym Agility: A Simple Strategy Game               July 2003

Adding A 100V Line Transformer To The SC480       July 2003
Amplifier Errata: page 59 August 2003
Ref Project Jan/Feb 2003

Low-Cost Dual Digital Dice                        August 2003

Maximum/Minimum Voltage Indicator                 August 2003

Halogen Lamp Dimmer With Soft Start               August 2003

"Safe" Oscillator For Watch Crystals              September 2003

Internal Resistance Tester For Batteries          September 2003

Pendulum-Controlled Clock                         September 2003

Super Light Sensor Circuit                        September 2003

LED Lighting For Dual-Filament Lamps              September 2003
Ref LED Lighting For Your Car Project, March 03

Interactive Toy Traffic Lights                    October 2003

Multipurpose Flipflop Timer                       October 2003

Automatic White-LED Garden Light                  October 2003

PICAXE-Based Bicycle Odometer                     October 2003

Making The Flexitimer Cycle On And Off            November 2003
Ref EA Project March 1991

Low Battery Indicator                             November 2003

Simple 9-Way Cable Identifier                     November 2003

Clipping Indicator For Audio Amplifiers           November 2003

8V DC Supply With Overvoltage Protection          November 2003

Cheap Switchmode DC-DC Converter                  November 2003

Simple 6-Input Alarm Circuit                      December 2003

Courtesy Light Extender                           December 2003

Battery Replacement Power Supply                  December 2003

Automatic Headlight Reminder                      December 2003

Speed Alarm For Cars                              December 2003

Low Cost Burglar Alarm For Boats                  January 2004

Remote Alarm For Smoke Detector                   January 2004

Yes-No Indicator Has Zero Standby Current         January 2004

Battery Charger Regulator                         January 2004

Video Tracer For Trouble Shooting                 January 2004

Cable Tester Uses Quad Latch                      February 2004

Phantom Supply For Lapel Microphone Adaptor       February 2004
Refer Project January 2004

Frequency Multiplier For LF Measurements          February 2004

LED Chaser Provides Three Game Functions          February 2004

Signal Meter For Weather Satellite Receiver       March 2004
Refer Project December 2003

Car Battery Failure Detector                      March 2004

Switch Timer For Bathroom Light                   March 2004

Model Theatre Lighting Dimmer                     March 2004

Fully Adjustable Power Supply                     March 2004

4-Wire Stepper Motor Driver                       March 2004
Refer Project May 2002 Errata: February 2005

Curve Tracer Adaptor                              April 2004

Logic Probe With Sound                            April 2004

7.2V Battery Replacement For Camcorders           April 2004

Stroboscope Uses White LEDs                       April 2004

Exit Sign With Battery Protection                 May 2004

One ADSL Filter Serves Several Phones             May 2004

PICAXE-Based Home Security Project                May 2004

PICAXE-Based Car Speed Alarm                      May 2004

Low-Cost Low-Intensity Alarm                      May 2004

Voice Bandwidth Filter                            June 2004

El-Cheapo Fluoro Ballast                          June 2004

Surveillance Camera Recorder                      June 2004

Experimental Pendulum Clock                       June 2004

Handy Time Delay With Relay Output                June 2004

Using Dr Video Mk2 To Process NTSC Video          July 2004
Refer project June 2004

Room Recorder Simple Microphone Preamp            July 2004

An Accurate Reaction Timer                        July 2004

PICAXE-Based Cable Tester                         July 2004

How To Connect Two PCs Using Modems               July 2004

PICAXE Code Stops False Triggering                July 2004

Stepper Motor Controller                          July 2004

Electronic Conjuring Trick                        August 2004

Adding An RGB Flag Output To The Component        August 2004
Video/RGB Converter Refer project May 2004

Keypad Decimal Encoder                            August 2004

PICAXE-Controlled Solar Fountain                  August 2004

USB-Powered PIC Programmer                        September 2004

Economical Desk Lamp For Camping                  September 2004

Quartz Clock Flasher Protects Equipment           September 2004

Two Switches Share One Pin                        September 2004

Multi-Level Lock System                           September 2004

PICAXE-Controlled Battery Charger                 September 2004
Errata: January 2005, March 2005

Light-Controlled Pond Pump                        October 2004

Bike Battery Charger                              October 2004

6-Station Sprinkler Controller                    October 2004

4-Channel Oscilloscope Adapter                    October 2004

Low-Coolant Alarm For Falcon EF & EL Models       November 2004

One-Second Darkroom Ticker                        November 2004

Simple PC Power-Up                                November 2004

Micro Timer With LED Readout                      November 2004

Water Pump Monitor                                November 2004

Reducing The Effective Mains Voltage              November 2004

Simple Combination Lock                           December 2004

Bare Bones ESR Tester                             December 2004

Ultrasonic Rangefinder For Robots                 December 2004

Festive Doorbell                                  December 2004

Junk Box Fan Speed Controller                     December 2004

Lithium-Polymer Peak Charger                      January 2005

Efficient Fan Speed Controller                    January 2005

Simple White Noise Generator                      January 2005

PICAXE-Based Toy Traffic Lights                   January 2005
With Battery Saver

12V Halogen Dimmer                                January 2005

Laser Guided Parking Aid                          February 2005

Novel White LED Torch                             February 2005

Electronic Thermostat For Plug-In Heaters         February 2005

ESR & Low Resistance Test Meter                   February 2005

Headlight Reminder                                March 2005

El Cheapo Cable Tester                            March 2005

Aviation Intercom                                 March 2005

Touch Lamp Remote                                 March 2005

Simple Under-Voltage Cut-Out                      March 2005

Reverse Polarity Protector                        March 2005

PICAXE Freezer Thermostat                         March 2005
Errata: May 2005

Automatic Security Lights                         April 2005

Op Amp Auto-Zero                                  April 2005

Synthetic Floating Negative Inductor              April 2005

Plugpack Checker                                  April 2005

Automatic Bathroom Exhaust Fan                    May 2005

Your Probing Questions Answered                   May 2005
Meter Probe Extensions Errata: August 2005

Automotive LED Timing Light                       May 2005

Low-Voltage Cutout For 12V SLA Batteries          May 2005

Solar Hot Water Controller                        June 2005

Two Basic Motor Speed Controllers                 June 2005

Op Amp Building Blocks                            June 2005

Simple Infrared Remote Control Extender           July 2005

Improved Stability For Dr Video Ref June 2004     July 2005

Cordless Drill Auto-Charger                       July 2005

RGB To Component Video Converter Fix              July 2005
Ref project October 2004

Using A Transistor As A High-Power Zener          July 2005

Low-Voltage Remote Mains Switch                   July 2005

Vertical Sync For The Component Video             August 2005
To RGB Converter Ref project May 2004

LED Noughts & Crosses                             August 2005

Audio Level Threshold Control                     August 2005

Cheap Pump Controller                             August 2005

DC-DC Converter Powers USB                        August 2005
Ref project March 2004

Antenna Input & Audio Line-Out Adaptor For        September 2005
Portable Radios

Automatic Alternate Motor Switch                  September 2005
Errata: October 2005

Filter For "Ripple Control" Mains Tones           September 2005
Errata: October 2005 - WARNING! DO NOT USE CIRCUIT

PICAXE RGB LED Display                            September 2005
see also Circuit Notebook, June 2006

Morse Code Practice Oscillator                    September 2005

Discrete Dual-Tracking Power Supply               October 2005

PICAXE-Controlled Bird Brooder                    October 2005

Electronic Nim Game                               October 2005

Trickle Charge Uses Optocoupler                   October 2005

1W LED Driver Circuit                             November 2005

Simple Cable Tester                               November 2005

Improved LED Torch                                November 2005

Load Sharing Multiple Supplies                    November 2005

Paraphase Tone Control                            November 2005

Solar Hot Water Differential Pump Controller      December 2005

The Mystery Swinger                               December 2005

Clap Controlled Switch                            December 2005

Winch Controller For Boaties & 4Wders             January 2006

Pushbutton Relay Selector                         January 2006

Dual Input-Combining Stereo Line Amplifier        January 2006

Battery Desulphation Progress Monitor             January 2006

Nicad Charger Uses Voltage Cut-Out                January 2006

Morse Code Identification Unit                    February 2006

Automatic Soldering Iron Controller               February 2006

Improved Speed Alarm Sensor                       February 2006
Refer Project November/December 1999

Steam & Diesel Loco Sounds                        March 2006

Long Life Lamp Beacon                             March 2006

Accurate Milliohm Meter                           March 2006

Sensitive Over-Current Protector                  March 2006

Delay Circuit For Power Windows                   March 2006

Versatile Electronic Load                         March 2006

4-20mA Current Loop Tester                        April 2006

"Beer-O-Magic" Temperature Controller             April 2006
Errata: September 2006

Improved Automatic Exhaust Fan                    May 2006

A Rotary Encoder For Your PIC Project             May 2006

Tank To Cistern Pump                              May 2006

PICAXE-Powered Pocket Timer                       May 2006

Miniature LED Torch Bulbs                         May 2006

PICAXE Drives Nokia LCD                           June 2006

Improved PICAXE RGB LED Display                   June 2006
refer Circuit Notebook, September 2005

Low-Coolant Alarm For EA-ED Falcons               June 2006

Mains Frequency Monitor                           July 2006
Errata: February 2007   

RC Phase-Shift Oscillator                         July 2006
 
Add Tick 'N' Tock To A Quartz Clock               July 2006

Simple Judging System For Photography Clubs       July 2006

Infrared Remote Extender                          August 2006

PICAXE Battery Protector                          August 2006

Mains-Derived Timebase                            August 2006

Automatic Daytime Running Lights                  August 2006
Errata: September 2006

Cheap 1W Luxeon LED Driver                        August 2006

Improved Delay Circuit For Power Windows          September 2006

Protected 12V Automotive Supply                   September 2006

Reliable 4-Channel RF Switch                      September 2006

Expandable 2-Digit LED Counter                    September 2006

Cheap, Reliable LED Torch                         September 2006

Battery Capacitor Tester                          October 2006

Temporarily Silencing A Smoke Detector            October 2006
Refer Project February 1996

Cheapskate's Headset Adapter                      October 2006

Reservoir Pump Controller                         October 2006

Wiegand Decoder                                   November 2006

Electronic Combination Lock                       November 2006

Model Train Detector                              November 2006

PICAXE To LCD Interface                           November 2006

PICAXE-Controlled Yoghurt Maker                   November 2006

Mains Zero-Crossing Recovery                      December 2006

Improved Vibrating Battery Tester                 December 2006

CB Radio Beeper With Selectable Tones             December 2006

Inexpensive Remote Watering System                December 2006

DRM Down-Converter For 455kHz IF Receivers        January 2007

Mechanical Soldering Iron Timer                   January 2007

Toslink Splitter                                  January 2007

Telephone Intercom Offers Privacy                 January 2007

Versatile Multi-Driver Speaker Connections        January 2007

3-Digit LED Stopwatch                             January 2007
Errata: February 2007       

PICAXE 4-Channel RF Remote Switch                 February 2007

Sinewave-To-Digital Clock Shaper                  February 2007

Tachometer & Elapsed Time Accumulator             February 2007

PICAXE-Controlled MP3 Doorbell                    February 2007

12/24V Auxiliary Power System                     March 2007

Portable Headphone Amplifier                      March 2007

Preamplifier For Moving Coil Magnetic Cartridges  March 2007
refer project August 2006

Odd/Even Day Watering Solution                    March 2007

Fun With Flashing LEDs                            March 2007

LCD Clock Battery Upgrade                         March 2007

Optical Water Level Switch                        April 2007

12V SLA Battery Capacity Tester                   April 2007

Rotary Encoder Interface                          April 2007

Measuring High-Q Inductors                        April 2007

Stage Microphone Muting Circuit                   April 2007

LED Pattern Flasher                               May 2007

IR Remote Control Tester With Audible Output      May 2007

Slave Flash Trigger For Digital Cameras           May 2007

Low-Dropout Voltage Regulator For Battery         May 2007
Equipment

Using A Stereo Amplifier As A 3-Input Guitar      May 2007
Amplifier

2-Channel Background Sounds For Model Railways    May 2007

Simple Battery Isolator                           June 2007

Using The PICAXE In SPI Mode                      June 2007

LED Stroboscope Uses A Frequency Counter To       June 2007
Measure RPM

Egg Timer Uses One CMOS IC                        June 2007

PICAXE-Based Tank Pump Controller                 July 2007

Halogen Lamp Optical Pyrometer                    July 2007

Timer For MIG Welder                              July 2007

Simple DC Motor Speed Control                     July 2007

Make Your Own SMD Tools                           July 2007

Leap-Frogging LED Chaser                          July 2007

Traffic Indicator Works From 12V Or 24V           August 2007

Airflow Detector Using A Torch Bulb               August 2007

Freezer Alarm With LED Temperature Readout        August 2007

PICAXE Thermostat For A 240V Heater               August 2007

White LED Touch Light                             August 2007

MP3 Player Remote Control                         August 2007

Alarm Clock With Day Selector                     September 2007

DC-DC Converter Has Two Outputs                   September 2007

IR LED Used As Remote Control Checker             September 2007

Battery Saver Under Micro Control                 September 2007

Musical Doorbell Based On A Toy Piano             September 2007

Phone Call Alert For Partially Deaf               September 2007

Bi-Directional Variable Speed Drive Includes      October 2007
Regeneration

Pea & Thimble Or 3-Card Trick                     October 2007

Emergency Lights Controller                       October 2007

Two Novel LED Flashers                            October 2007

Adjustable Q For Subwoofer Equaliser              October 2007

PIC-Controlled SLA Battery Capacity Meter         November 2007

Audio Link Via Cat.5 Cable                        November 2007

Simple Model Train Controller                     November 2007

R/C Servo Exerciser                               November 2007

Animation For Mobiles                             November 2007

Discrete Component Low Dropout Regulator          November 2007

In-Car Charger & Switcher For An SLA Battery      December 2007

Temperature-Controlled Fridge Fan                 December 2007

Simple Water Pump Controller                      December 2007

Low-Current Stable Clock Source                   December 2007

Quiz Adjudicator Has No Pushbuttons               December 2007

Buck & Boost Regulator                            December 2007

Doorbell Circuit With Zero Standby Current        December 2007

Nicad Cell Discharger                             January 2008

CFL Inverter Has Overload Protection              January 2008

Spa Heater Control                                January 2008

Using The Enhanced Voice Recorder                 February 2008
In A Model Railway refer project December 2007

Rechargeable Cell Logger & Discharger             February 2008

Infrared Light Beam Relay                         February 2008

Novel Neon Flasher Has Low Current Drain          February 2008

TV Field Strength Meter                           March 2008

Alternator Controller For Charging Deep Cycle     March 2008
Batteries

Emergency Light uses 3W White LED                 March 2008

PICAXE Light Box Countdown Timer                  March 2008

Impedance Bridge Measures At Three Frequencies    March 2008

Simple Mosfet Tester                              March 2008

PC Cooling Fan Driver                             March 2008

Regenerative Shortwave Radio Receiver Has Audio   April 2008
Limiter

Timer Has Zero current After Shutdown             April 2008

2-Way Active Crossover Uses Transconductance      April 2008
Amplifiers

Magnetic Proximity Switch                         April 2008

Simple 9V Battery Tester                          April 2008

Frequency Indicator For Generating Equipment      May 2008

Constant-Current LED Navigation Lights            May 2008

Optical Smoke Detector                            May 2008

Biased Yes Or No Circuit                          May 2008

24V & 6V Versions Of Battery Charge Controller    May 2008
Refer Project April 2008

Synchronous AM Detector For Improved Shortwave    June 2008
Reception

Photo-interrupter Bias Circuit For Electronic     June 2008
Ignition Systems

Infrared Close Object Detector                    June 2008

Meteoric LED Display                              June 2008

6-Digit Demonstration Counter                     June 2008

Simplified Headphone Adaptor                      June 2008
Refer Project April 2008

PIC Capacitance Meter Measures Charging Time      July 2008

Mobile Phone Can Power PICAXE Circuits            July 2008

Simple Door Guard Alarm                           July 2008

Programming The Remote Control Codes For The CD-  July 2008
ROM Playback Adaptor Refer Project November 2007

12V CDI For Motorbikes                            July 2008

Universal Ding-Dong Chime Driver                  July 2008

PICAXE 21 Game                                    July 2008

Expanded Scale Voltmeter                          July 2008

Charging Controller For 12V Lead-Acid Batteries   August 2008

Random Direction Control For Model Railways       August 2008

Antenna Resonance Indicator                       August 2008

Balanced Supply Rails From A 12V Battery          August 2008

Universal IR Remote Control Repeater              August 2008

Kill Those Adverts Quickly With The Supermute     September 2008

4017 Counter Tester                               September 2008

Water Tank Level Indicator                        September 2008

PICAXE-Based Star 5W LED Control Unit             September 2008

A Low-Power Class-A Valve Amplifier               September 2008

Sweep Frequency Generator For Audio Testing       September 2008

Tester For Ultrasonic Devices                     October 2008

USB-Controlled Desk Lamp                          October 2008

Tacho Interface For Diesel Motors                 October 2008

Smart Pool Pump Control                           October 2008

PICAXE-Based Mosfet Tester                        October 2008

Phone Mute For PA Sound System                    November 2008

Converting A Linear Pot To A Log Curve            November 2008

12V Inverter Runs High-Voltage Supply             November 2008

Exerciser For Manual Dexterity                    November 2008

Squeeze Speed Control For Bosch IXO               November 2008
Cordless Screwdriver

Vandal-Proof Bell Button For Entry Gate           November 2008

Fuzz Box For Guitars                              December 2008

Monitor For Pet Bed Heater                        December 2008

One-Button Camera Timer                           December 2008

VHF Aircraft Receiver With Squelch                December 2008

Toy Poker Machine Is No Risk To Wallet            December 2008

Battery Monitor Has Low Current Drain             December 2008

Fuel Economiser Uses Strain Gauge On Accelerator  January 2009

Phone Ringer With Remote Control                  January 2009

Solar Powered Backyard Lighting System            January 2009

Crystal-Controlled Short-Wave Converter           January 2009

Switchless Intercom                               January 2009

Model Railway Track Cleaner                       January 2009

Tricks With A 4017 Chaser                         February 2009

Low-Power Analog Computer                         February 2009

Loud Repeater For Traffic Indicators              February 2009

Semiconductor Evaluator For Scope                 February 2009

Bedside Lamp Controller                           February 2009

Modification To Yaesu FRG7 SW Receiver            March 2009

Solar-Powered Fountain Driver                     March 2009

Simple Circuit Measures The Temperature Of        March 2009
Your Hot Water System Errata: June 2009

Fast Clock Driver For A Model Railway Layout      March 2009

USB Polarity Tester For Circuit Prototypes        March 2009

Automated Water Tank Filler                       April 2009

Modified Flexitimer Ref EA March 1991             April 2009

RS232C To Current Loop Converter                  April 2009
See Mailbag May 2009 for modifications

Simple Counter Uses Crystal Clock As A Readout    April 2009

High Side Current Monitor                         April 2009

Electronic Kaleidoscope                           April 2009

12V Regulated Inverter Supply                     May 2009

Solar Panel Tracker Uses LED Sensors              May 2009

PICAXE-Based Solar HWS Boost Control              May 2009

3-Stage Dimmer For Mountain Bike Light            May 2009

Reticulation Valve Locator                        May 2009

Over-Voltage Protection For DC Loads              May 2009
Errata: October 2009

Preamplifier For Speed Controller                 May 2009
Errata: July 2009

One-In-Five Timer                                 June 2009

External USB Supply For iPOD Touch                June 2009

Remote Control Extender For Foxtel                June 2009

Electronic Mousetrap                              June 2009

4-20mA Current Loop Tester                        June 2009

Tester For Rotary Encoders                        June 2009

Floating Current Source                           June 2009

Modified Vehicle Voltage Monitor                  June 2009
Refer project May 2006

20-LED Chaser Uses SCR Flipflop                   June 2009

RF Preamplifier For World-Band Receivers          July 2009

Signal Inverter Runs From A 5V Rail               July 2009

Simple Water Spillage Alarm                       July 2009

Accurate Timer Locked To 50Hz Mains Supply        July 2009

Enhanced Software For the Appliance Energy Meter  July 2009
Refer project July & August 2004

Phase Modulator Vibrato For Musical Instruments   August 2009

Fractional Frequency Division With A PICAXE       August 2009

12V-36V DC Converter                              August 2009

Stereo Stethoscope For Troubleshooting            August 2009

FireWire-Sensing Mains Power Switch               September 2009

A Discrete Op Amp For Audio Use                   September 2009

Temperature-Sensing Battery Charger Cut-Out       September 2009

6-Digit PICAXE Timer                              September 2009

Relays Can Do It By Themselves                    September 2009

High-Current Voltage Doubler                      September 2009

RS232 To IrDA Transmitter                         October 2009

Valve Radio Power Transformer Replacement         October 2009

Audio Power Meter With Programmable Load          October 2009

Electronic Tank Gauge & Pump Control For          October 2009
Caravans & Boats

Ultra-Low Power Flasher                           October 2009

Solar Powered Automatic Garden Lighting System    November 2009

Relay Switcher For Testing Diodes & Transistors   November 2009

Power Supply With Balanced Rails                  November 2009

Modulated Oscillator For AM Radio Alignment       November 2009

Passive RIAA Valve Preamplifier                   November 2009

Trailer Lights Test Circuit                       December 2009

Rain Sensor Uses AC                               December 2009

RF Wobbulator For AM/FM Receivers                 December 2009

Solar Powered Night Light                         December 2009

PICAXE-Controlled Slow-Down For DCC Model Trains  January 2010

Simple Battery Tester Uses Quartz Clocks          January 2010

Bathroom Fan/Timer Has Single Switch Operation    January 2010

Old Mobile Phone Battery Powers LED Torch         January 2010

PICAXE Digital Clock & Switch Control             January 2010

Shower/Egg Timer Uses Red & Green LEDs            February 2010

Switchmode LED Driver                             February 2010

Self-Interrupting PICAXE                          February 2010

Trailer Wiring Tester                             February 2010

Lithium-Ion Powered Reading Light                 February 2010

PICAXE-Controlled Watering System                 February 2010
Errata: March 2010

Beam-Break Detector For Camera Shutter            March 2010
Or Flash Control

Capacitance Meter Is Based On Reactance           March 2010

Discrete Low-Dropout Voltage Regulators           March 2010

Simple FM Receiver Has Pulse-Counting Detector    March 2010

Adding A Restart To The Modified Flexitimer       April 2010
Ref John Clarke Circuit Notebook April 2009

Panoramic Adaptor For A Communications Receiver   April 2010

Blackout Alarm For A Life-Support Machine         April 2010

Constant Current Source LED Sorter                April 2010

Cancelling Op Amp Input Bias Current              April 2010

Momentary Switch Teamed With Latching Relay       May 2010

Digitally-Controlled Tone Filter                  May 2010

People Counter Uses Light Beam Sensors            May 2010

Level Translator For A PIC Programmer             May 2010

Switching Balanced Microphones Using Foot Switch  May 2010

PICAXE Traffic Light Controller                   May 2010

Float Charger For NiMH Cells                      June 2010

Low-Cost Gigaohm Decade Resistance Box            June 2010

12V To +/-24V Switched Capacitor Supply           June 2010

Programming Adaptor For The WIB Microcontroller   June 2010
Refer project November/December 2009/January 2010

Using The Voltage Interceptor With A Frequency    June 2010
Output Air-Flow Meter

Using 12V LED Replacement Lamps In Cars           July 2010

UHF Link For Remote Control Extender              July 2010
Refer project October 2006

Modifying The Flexitimer For Short Intervals      July 2010
Refer project EA March 1991

Sound-Triggered Camera                            July 2010

Check Inductors With This Simple Q Meter          August 2010

Adding Protection Diodes To Positive/Negative     August 2010
Regulator Circuits

DC Motor Speed Sensing                            August 2010

SCR Circuits Based On Discrete Transistors        August 2010

Playing Dice Games With A PICAXE08M               August 2010

Random Playback Trigger For The Voice Recorder    August 2010
Ref project December 2007

PICAXE Refrigerator Timer For Cafes               September 2010

PICAXE I/O Demonstrator Circuit                   September 2010

Magnetic Pole & Flux Strength Indicator           September 2010

Automatic Exterior Light                          September 2010

6-Stage Cascaded Timer Uses SCRs                  September 2010

PIC-Based Water Distributor                       October 2010

Auto-Sensing Master/Slave Power Control           October 2010

PICAXE Supply Uses Supercaps For Backup           October 2010

USB-Powered Headphone Amplifier                   October 2010

Cat Door Control                                  October 2010

Electronic Fuse Employs A Relay                   November 2010

Golf Buggy Battery Charger Control                November 2010

Reversing Camera Delay                            November 2010

Lullaby & Lamp Timer                              November 2010

High-Performance Shortwave Converter              November 2010

Using The LM335Z For Temperature Measurement      December 2010

Dual Motor Control For Robotics Applications      December 2010

Wien Bridge Oscillator Uses Paralleled Op Amps    December 2010
Errata: January 2011

LEDs & Ladders                                    December 2010

Lightning Detector Uses 555 Timer                 December 2010

Fuel Flow Meter For Diesel Engines                January 2011

NMEA Interface For EM-408 GPS Module              January 2011

PIC-Based Direct Digital Synthesiser              January 2011

RC5 Infrared Remote Control                       January 2011

Power Supply For Salvaged Amplifier               January 2011

PICAXE-Based Dual Frequency Counter               February 2011

Nicad/NiMH Battery Charge Controller              February 2011
Senses Temperature Rise

PN Junction Acts As Voltage Reference And         February 2011
Noise Source

Wien Bridge Oscillator Uses Zener Stabilisation   February 2011

PICAXE Version Of Simon Says                      February 2011

PICAXE-Based Data Logger                          March 2011

Sinewave Oscillator Has Low Distortion            March 2011

Using Transistors To Measure Temperature          March 2011

PICAXE-Based 48-LED Chaser                        March 2011

Mains Timer For Battery Chargers                  April 2011

Chirp Suppressor For A Car Alarm                  April 2011

PIC-Based Square-Wave Generator                   April 2011

H-Bridge Circuits For Robotics                    April 2011

LED Light Controller                              April 2011

Electric Guitar/Violin Preamplifier               May 2011

PICAXE-Based Automatic Multi-Core Cable Tester    May 2011

Data Logger Based On OpenLog uSD Board            May 2011

Flexitimer Modification Gives Adjustable On And   May 2011
Off-Delay Settings (Ref Project EA March 1991)

Wireless Doorbell Relay Driver                    June 2011

Microphone Adaptor For A Violin                   June 2011

Diesel Engine Watchdog Circuit Monitors Oil       June 2011
Pressure & Water Temperature

PICAXE-Based Metronome With Accented Beat         June 2011

Multi-Decade Period-Multiplier For Precision      June 2011
Frequency Comparisons

Surf Sound Synthesiser                            July 2011
Errata: August 2011

Geiger Counter Uses Cockcroft-Walton Multiplier   July 2011

PICAXEL The Electronic Cricket                    July 2011

Wein Bridge Oscillator Uses LM386 Power Amplifier July 2011

Synthetic 5-Segment Potentiometer                 July 2011

Maximite Stepper Motor Interface                  August 2011
Ref project March-May 2011

Solar Tracking With A Standard                    August 2011
Motor Speed Controller

Audio Impedance Meter Operates At 1kHz            August 2011

Stereo Headphone Adaptor For LCD & Plasma TVs     August 2011

Shunt Regulator For Battery Float Charging        August 2011

Automatic TOSLink Digital Audio Switcher          September 2011

Temperature Meter Has Celsius & Fahrenheit Scales September 2011

PICAXE Infrared Remote Switch For                 September 2011
Decorative LED Light

Phantom Power For The USB Recording Interface     September 2011
Ref project June 2011

Postie Annunciator Indicates When You Have Mail   September 2011

Substitute For AC Motor Reversing Switch          October 2011

Simple Lithium-Ion Battery Charger                October 2011

Timing Laser For Small 2-Stroke Motors            October 2011

Additional Features For The Digital Inclinometer  October 2011
Ref project August 2011

AC Source For Testing Pool Salt Concentration     October 2011

Prototyping Board For PICAXE Micros               October 2011

Mains Timer Has No Stand-By Power                 October 2011

Upgrade For The Digital Insulation Meter          November 2011
Ref project June 2010

5-Level Logic Probe                               November 2011

Twist-Grip Throttle For 12/24V 20A Speed Control  November 2011
Ref project June 2011

PICAXE-Based Digital RF Meter                     November 2011

Battery Replacement For An AVO Mk8 Multimeter     November 2011

Model Train Controller Uses PICAXE                December 2011

PICAXE Plant Watering Timer                       December 2011

Remote Control Uses Recycled Wireless Doorbell    December 2011

Replacement Horn Circuit For A Car                January 2012

Program Variation For Digital Spirit Level        January 2012

Recycling A Clothes Dryer Timer                   January 2012

Solar Tracker Employs Two Photo Cells             January 2012

Audio-Visual Metronome                            January 2012

Wide Current-Mode 18-Bit DAC                      January 2012

PICAXE-Based Traffic Light Sequencer              February 2012

Electric Fence Tester Uses Xenon Flash Tube       February 2012

Operating Multiple 433MHz UHF Remote Switches     February 2012

Quadrature Decoder For Motor Feedback             February 2012

Eye-Level Display For Bathroom Scales             February 2012

Guitar Practice Amplifier                         February 2012

PICAXE-Based Garage Door Sentinel                 March 2012     

Improvements To The Milliohm Adaptor              March 2012
Ref project February 2010

Measuring Short Intervals With The Maximite       March 2012
Ref project March-May 2011

Numeracy Trainer For Young Children               March 2012

Using Mosfets For Reverse Polarity Protection     April 2012

Simple Water Level Alarm                          April 2012

433MHz Garage Door Position Monitor               April 2012

12/24V Vehicle Instrument Panel                   April 2012

PICAXE 433MHz Data Transmitter & Receiver         May 2012

Cheap Electronic Ballast For Fluorescent Lights   May 2012

Air-Compressor Controller For A Sand-Blaster      May 2012

Motor Protector Uses Missing Pulse Detector       May 2012

Maximite-Based Ultrasonic Rangefinder             May 2012

Tank Water Level Circuit With Hysteresis          June 2012

Really Simple Garage Door Monitor                 June 2012

433MHz Remote Lamp Switching                      June 2012

Optical Tachometer Uses Photo-Interrupter         June 2012

Accurate Clock Uses Maximite & Garmin GPS Module  June 2012

Engine Hours Counter                              June 2012

PICAXE-Based Wireless Electricity Monitor         July 2012

A Really Simple Metal Detector                    July 2012

Modifying An Urn To Save Power                    July 2012

Capacity Test Circuit For Rechargeable Cells      July 2012

Checking IF Coil Frequency                        July 2012

PICAXE-Based Mousetrap Is Non-Lethal              August 2012

7-Day Programmable Alarm Clock                    August 2012

Serial Cable For Old Computers                    August 2012

Recycled PC Power Supplies Deliver 24V            August 2012
Errata: September 2012

Voltage Regulator For Mitsubishi Van              August 2012

Simple Sound & Light Alarm                        September 2012

Low-Voltage LED Lighting System Has Remote-       September 2012
Controlled Dimming

Bilge Pump Time Extender                          September 2012

Induction Motor Centrifugal Switch Over-Ride      September 2012
Ref project April/May 2012 (Errata: October 2012)

Simple Metal Locator Uses Overlapping Coils       September 2012

Compensated Probe Measures Peak Mains AC Voltage  September 2012

Adjustable Float-Switch Triggered Timer           October 2012

Sony IR Remote Decoder uses Maximite              October 2012

Bass Sweeper For Subwoofer Testing                October 2012

Simple AM Radio Uses Discrete Parts               October 2012

Lap Counter For Track Or Pool                     October 2012

Programmable RF Remote Timer/Switch               November 2012

Hard Drive Activity Indicator                     November 2012
Ref Multi-Voltage Monitor project May 2006

GSM Alarm System Uses Hard Disk As Motion Sensor  November 2012

Fixed-Frequency PWM Motor Speed Control           November 2012

Digital Thermostat Features Single-Button         December 2012
User Interface

Electronic Canary Needs No Bird Seed              December 2012

PICAXE-Based Roulette Wheel                       December 2012

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27/11/2012