Next Month in Silicon Chip
Using a DDS Module for AM Radio IF Alignment
Advertising Index
Altronics.............................. INSERT
In this article, we present updated software and slight tweaks to the
hardware of the Micromite BackPack Touchsreen DDS Signal Generator
described in the April issue. These changes make it a cinch to align the IF
stage of a transistor or valve-based superheretodyne AM radio.
Dave Thompson......................... 111
Rohde & Schwarz RTB2004 DSO Review
Emona Instruments.................... IBC
We take a look at this latest offering from R&S which combines a 10-bit ADC
and 10.1-inch capacitive touchscreen along with either two or four channels
in a compact bench-top unit.
New Developments in LED Lighting
We take a look how LEDs are now rapidly supplanting all other forms of
domestic lighting whether it is incandescent, fluorescent (strip lighting and CFL)
or 230VAC and 12V halogen. But LEDs are often not dimmable or cannot be
dimmed with conventional dimmers. We tell you what you need to know.
Emergency Brake Warning for your Car
Brake lights are important in warning people behind you when you're
stopping but the problem is that they light up whether you're barely
pressing the pedal or are pressing as hard as you can. This project will
add a feature of many premium vehicles to just about any car: rapid
flashing of the hazard lights under heavy braking, to warn any tailgater that
you will soon be stationary!
Note: these features are prepared or are in preparation for publication and
barring unforeseen circumstances, will be in the next issue.
The July 2017 issue is due on sale in newsagents by Thursday June 29th. Expect
postal delivery of subscription copies in Australia between June 29th and July 14th.
Digi-Key Electronics....................... 3
ECADtools.................................... 92
H K Wentworth/Electrolube............ 8
Hare & Forbes.......................... OBC
High Profile Communications..... 111
Icom............................................... 9
Jaycar............................... IFC,53-60
Keith Rippon Kit Assembly......... 111
LD Electronics............................ 111
LEDsales.................................... 111
Master Instruments.................... 111
MathWorks................................... 93
Microchip Technology................... 17
Mouser Electronics......................... 7
Oatley Electronics........................ 11
Ocean Controls............................ 43
Pakronics....................................... 5
PCB Cart................................... 77
QualiEco Circuits Pty Ltd............. 51
Notes & Errata
Rockby Electronics....................... 27
Sesame Electronics................... 111
Micromite LCD BackPack V2, May 2017: in the parts list on page 89 it lists 4 M3
SC
x 12mm pan-head machine screws. They should instead be M3 x 6mm (M3 x 8mm
may also work). Also omitted from the parts list is the jumper shunt and 2-pin male
header needed for JP1, and in Fig.1 JP1 is mistakenly labelled as LK1; the PCB
overlay is correct. The kit we supply comes with the correct parts.
SC Online Shop............. 99,104-105
ATmega-based Metal Detector with stepped frequency indication, Circuit
Notebook, March 2017: the circuit diagram published is missing two 10kW resistors, one of which is connected between the anode of D1 and pin 27 of IC1 and
the other goes between pin 27 and ground. This allows IC1 to monitor the battery
voltage and display it on the LCD.
Silicon Chip Wallchart.................. 76
SC Radio & Hobbies DVD....... 45,71
Silicon Chip Binders..................... 80
Silicon Chip Subscriptions........... 85
Silvertone Electronics.................... 8
Tronixlabs................................ 6,111
Vintage Radio Repairs............... 111
WARNING!
SILICON CHIP magazine regularly describes projects which employ a mains power supply or produce high voltage. All such
projects should be considered dangerous or even lethal if not used safely.
Readers are warned that high voltage wiring should be carried out according to the instructions in the articles. When working
on these projects use extreme care to ensure that you do not accidentally come into contact with mains AC voltages or high
voltage DC. If you are not confident about working with projects employing mains voltages or other high voltages, you are
advised not to attempt work on them. Silicon Chip Publications Pty Ltd disclaims any liability for damages should anyone be
killed or injured while working on a project or circuit described in any issue of SILICON CHIP magazine.
Devices or circuits described in SILICON CHIP may be covered by patents. SILICON CHIP disclaims any liability for the
infringement of such patents by the manufacturing or selling of any such equipment. SILICON CHIP also disclaims any liability
for projects which are used in such a way as to infringe relevant government regulations and by-laws.
Advertisers are warned that they are responsible for the content of all advertisements and that they must conform to the
Competition & Consumer Act 2010 or as subsequently amended and to any governmental regulations which are applicable.
112 Silicon Chip
siliconchip.com.au
