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Practical Electronics PCB SERVICE PROJECT JUNE 2020 CODE Arduino breakout board – 3.5-inch LCD Display ............... 24111181 PRICE £6.95 MAY 2020 Ultra-low-distortion Preamplifier nput Selector ......................... 01111112 Ultra-low-distortion Preamplifier pushbutton nput Selector ..... 01111113 433MHz Wireless Data Repeater .............................................. 15004191 Bridge-mode Adaptor for Amplifier ............................................. 01105191 iCEstick VGA Terminal ................................................................ 02103191 Analogue noise with tilt control ................................................... AO-0520-01 Audio Spectrum Analyser ........................................................... PM-0520-01 11.25 8.50 7.95 4.95 7.95 8.95 APRIL 2020 Flip-dot Display black coil board................................................. 19111181 Flip-dot Display black pixels ....................................................... 19111182 Flip-dot Display black frame ....................................................... 19111183 Flip-dot Display green driver board ............................................ 19111184 £14.95 JANUARY 2020 solated Serial Link ............................................................ 24107181 DECEMBER 2019 Extremely Sensitive agnetometer ................................... 04101011 Four-channel High-current DC Fan and Pump Controller ... 05108181 Useless Box ....................................................................... 08111181 NOVEMBER 2019 Tinnitus Tinnitus nsomnia iller aycar case see text ........... 01110181 nsomnia iller Altronics case see text ........ 01110182 OCTOBER 2019 Programmable GPS-synced requency eference .......... 04107181 Digital Command Control Programmer for Decoders ........ 09107181 Opto-isolated Mains Relay (main board) ........................... 10107181 pto-isolated ains elay 2 × terminal extension board ...10107182 JUNE 2019 Arduino-based LC Meter ................................................... 04106181 USB lexitimer................................................................... 19106181 APRIL 2019 Heater Controller ............................................................... 10104181 MARCH 2019 10-LED Bargraph Main Board ........................................... 04101181 +Processing Board ............................................. 04101182 . kW nduction otor Speed Controller........................... 10105122 NOVEMBER 2018 adio £11.25 £8.60 £35.00 £12.88 SEPTEMBER 2018 AUGUST 2018 JULY 2018 Touchscreen Appliance Energy Meter – Part 1 ................. 04116061 Automotive Sensor odifier .............................................. 05111161 £16.75 £8.75 £11.50 JUNE 2018 £8.75 £8.75 High Performance RF Prescaler........................................ 04112162 Micromite BackPack V2..................................................... 07104171 Microbridge ........................................................................ 24104171 £11.50 £14.00 GH Touchscreen requency Counter .......................... 04110171 Two 230VAC MainsTimers ................................................ 10108161 10108162 OCTOBER 2018 Universal Temperature Alarm ............................................ 03105161 Power Supply or Battery- perated alve adios ........... 18108171 18108172 18108173 18108174 £11.50 £8.75 £5.60 £10.45 £5.60 £27.50 £29.95 £8.50 PRICE eceiver .............................................. 06111171 3-Way Active Crossover .................................................... 01108171 Ultra-low-voltage Mini LED Flasher ................................... 16110161 Brainwave Monitor ............................................................. 25108181 £12.90 Super Digital Sound Effects odule .................................. 01107181 £5.60 Watchdog Alarm ................................................................ 03107181 £8.00 PE Theremin (three boards: pitch, volume, VCA) ............. PETX0819 £19.50 PE Theremin component pack (see p.56, August 2019) ... PETY0819 £15.00 ull-wave 0A Universal otor Speed Controller .............. 10102181 Recurring Event Reminder ................................................ 19107181 Temperature Switch k2 ................................................... 05105181 2× 2 Battery Balancer ................................................... 14106181 Deluxe requency Switch .................................................. 05104181 USB Port Protector ............................................................ 07105181 £5.95 £8.50 AUGUST 2019 JULY 2019 MAY 2019 Super- A Diode Curve Plotter ........................................................... 04112181 £10.95 Steam Train Whistle Diesel Horn Sound Generator ............... 09106181 £8.50 Universal Passive Crossover (one off) ...................................... UPC0320 £12.50 Crossover component set for Wavecor speaker (one off)........ WAVXO (see website) otion-Sensing 2 Power Switch ................................... 05102191 USB eyboard ouse Adaptor........................................ 24311181 DSP Active Crossover ADC ............................................ 01106191 DSP Active Crossover DAC ×2 ...................................... 01106192 DSP Active Crossover CPU ............................................ 01106193 DSP Active Crossover Power routing .............................. 01106194 DSP Active Crossover ront panel .................................. 01106195 DSP Active Crossover LCD ............................................. 01106196 CODE FEBRUARY 2019 MARCH 2020 FEBRUARY 2020 PROJECT High Performance 0- ctave Stereo Graphic Equaliser ... 01105171 MAY 2018 APRIL 2018 Spring everberation Unit ................................................. 01104171 DDS Sig Gen Lid ............................................................... Black DDS Sig Gen Lid ............................................................... Blue DDS Sig Gen Lid ............................................................... Clear £12.88 £22.60 £5.60 £7.05 £27.50 £17.75 £12.88 £15.30 £10.45 £10.45 £5.60 £15.30 £8.05 £7.05 £8.05 MARCH 2018 Stationmaster ain Board ................................................. 09103171 + Controller Board .............................................. 09103172 SC200 Amplifier odule Power Supply .......................... 01109111 FEBRUARY 2018 £12.90 £8.00 £10.45 GPS-Synchronised Analogue Clock Driver ....................... 04202171 High-Power DC otor Speed Controller Part 2 + Control Board ................................................... 11112161 + Power Board .................................................... 11112162 £8.00 £10.45 High-Power DC otor Speed Controller Part .............. 11112161 Build the SC200 Amplifier odule ..................................... 01108161 JANUARY 2018 £17.75 £16.45 £12.88 £12.88 £15.30 £12.88 £12.88 PCBs for most recent PE EPE constructional projects are available. rom the uly 20 3 issue onwards, PCBs with eight-digit codes have silk screen overlays and, where applicable, are double-sided, have plated-through holes, and solder mask. They are similar to photos in the project articles. Earlier PCBs are likely to be more basic and may not include silk screen overlay, be single-sided, lack plated-through holes and solder mask. Always check price and availability in the latest issue or online. A large number of older boards are listed for ordering on our website. In most cases we do not supply kits or components for our projects. For older projects it is important to check the availability of all components before purchasing PCBs. Back issues of articles are available see Back ssues page for details. 68 Practical Electronics | June | 2020 Double-sided | plated-through holes | solder mask PROJECT DECEMBER 2017 CODE Precision Voltage and Current Reference – Part 2............ 04110161 NOVEMBER 2017 50A Battery Charger Controller ......................................... 11111161 Micropower LED Flasher (45 × 47mm) ......................... 16109161 (36 × 13mm) ......................... 16109162 Phono Input Converter ...................................................... 01111161 SEPTEMBER 2017 Compact 8-Digit Frequency Meter..................................... 04105161 AUGUST 2017 Micromite-Based Touch-screen Boat Computer GPS ....... 07102122 Fridge/Freezer Alarm ......................................................... 03104161 JULY 2017 Micromite-Based Super Clock ........................................... 07102122 Brownout Protector for Induction Motors ........................... 10107161 JUNE 2017 Ultrasonic Garage Parking Assistant ................................. 07102122 Hotel Safe Alarm................................................................ 03106161 100dB Stereo LED Audio Level/VU Meter ......................... 01104161 MAY 2017 The Micromite LCD BackPack........................................... 07102122 Precision 230V/115V 50/60Hz Turntable Driver ................ 04104161 APRIL 2017 Microwave Leakage Detector ............................................ 04103161 Arduino Multifunctional 24-bit Measuring Shield ............... 04116011 + RF Head Board ................................................ 04116012 Battery Pack Cell Balancer ................................................ 11111151 MARCH 2017 Speech Timer for Contests & Debates .............................. 19111151 FEBRUARY 2017 Solar MPPT Charger/Lighting Controller ........................... 16101161 Turntable LED Strobe ........................................................ 04101161 JANUARY 2017 High-performance Stereo alve Preamplifier .................... 01101161 High Visibility 6-Digit LED Clock ........................................ 19110151 DECEMBER 2016 Universal Loudspeaker Protector ...................................... 01110151 9-Channel Infrared Remote Control .................................. 15108151 Revised USB Charger ....................................................... 18107152 PRICE £15.35 £12.88 £8.00 £5.60 £8.00 £12.88 £10.45 £8.00 £10.45 £12.90 £10.45 £8.00 £17.75 £11.25 £19.35 £8.00 £17.75 £9.00 £16.42 £17.75 £7.60 £17.75 £16.42 £12.88 £16.42 £5.36 NOVEMBER 2016 Fingerprint Access Controller – Main Board ...................... 03109151 Fingerprint Access Controller – Switch Board ................... 03108152 OCTOBER 2016 Arduino-Based USB Electrocardiogram ............................ 07108151 100W Switchmode/Linear Bench Supply – Part 2 ............. 18104141 SEPTEMBER 2016 LED Party Strobe............................................................... 16101141 Speedo Corrector .............................................................. 05109131 AUGUST 2016 Low-cost Resistance Reference ........................................ 04108151 USB Power Monitor ........................................................... 04109121 £12.88 £9.79 £20.83 £9.80 £12.00 £5.36 £12.00 PROJECT JULY 2016 CODE PRICE Driveway Monitor – Detector Unit ...................................... 15105151 Driveway Monitor – Receiver Unit ..................................... 15105152 USB Charging Points......................................................... 18107151 £11.80 £7.50 £5.00 JUNE 2016 Infrasound Snooper ........................................................... 04104151 £7.50 Audio Signal Injector and Tracer ....................................... 04106151 £9.64 Audio Signal Injector and Tracer – Demodulator Board .... 04106152 £5.36 Audio Signal Injector and Tracer – Shield Board ............... 04106153 £7.48 Champion Preamp............................................................. 01109121/22 £8.29 MAY 2016 2-Channel Balanced Input Attenuator for Audio Analysers and Digital Scopes – Main Board ..................... 04105151 Analysers and Digital Scopes – Front Panel ..................... 04105152 Analysers and Digital Scopes – Rear Panel ...................... 04105153 Appliance Earth Leakage Tester – Main Board ................. 04203151 Appliance Earth Leakage Tester – Insulation Board.......... 04203152 Appliance Earth Leakage Tester – Front Panel ................. 04203153 4-Output Universal Voltage Regulator ............................... 18105151 £16.40 £20.75 £16.40 £16.40 £7.50 For the many pre-2016 PCBs that we stock please see the PE website: www.electronpublishing.com PE/EPE PCB SERVICE Order Code Project Quantity Price ......................................................... ......................................................... 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Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......................................................... Tel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Email . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I enclose payment of £ . . . . . . . . . . . . . . (cheque/PO in £ sterling only) payable to: Practical Electronics Card No . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Valid From . . . . . . . . . . . . . . . . . Expiry Date . . . . . . . . . . . . . . . . Card Security No . . . . . . . . . . You can also order PCBs by phone, email or via the shop on our website: www.electronpublishing.com No need to cut your issue – a copy of this form is just as good! All prices include VAT and UK p&p. Add £4 per project for post to Europe; £5 per project outside Europe. Orders and payment should be sent to: Practical Electronics, Electron Publishing Ltd 113 Lynwood Drive, Merley, Wimborne, Dorset BH21 1UU Tel 01202 880299 Email: shop<at>electronpublishing.com On-line Shop: www.epemag.com Cheques should be made payable to ‘Practical Electronics’ (Payment in £ sterling only). NOTE: Most boards are in stock and sent within seven days of receipt of order, please allow up to 28 days delivery if we need to restock. Practical Electronics | June | 2020 69