This is only a preview of the November 2024 issue of Practical Electronics. You can view 0 of the 80 pages in the full issue. Articles in this series:
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Items relevant to "Multi-Channel Volume Control, part one":
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Practical Electronics PCB SERVICE
PROJECT
NOVEMBER 2024
CODE
Ideal Diode Bridge Rectifiers (28mm square).......................... 18101241
Ideal Diode Bridge Rectifiers (22mm square).......................... 18101242
Ideal Diode Bridge Rectifiers (4-pin SIL)................................. 18101243
Ideal Diode Bridge Rectifiers (tiny SOT-23)............................. 18101244
Ideal Diode Bridge Rectifiers (standalone SMD)..................... 18101245
Ideal Diode Bridge Rectifiers (standalone TH; 2oz copper)... 18101246
Multi-channel Volume Control (volume PCB).......................... 01111221
Multi-channel Volume Control (control PCB).......................... 01111222
Multi-channel Volume Control (OLED PCB, black)................. 01111223
OCTOBER 2024
TQFP-32 Programming Adaptor............................................. 24108231
TQFP-44 Programming Adaptor............................................. 24108232
TQFP-48 Programming Adaptor............................................. 24108233
TQFP-64 Programming Adaptor............................................. 24108234
2m VHF FM Test Signal Generator.......................................... 06107231
SEPTEMBER 2024
Calibrated Microphone (SMD version).................................... 01108231
Calibrated Microphone (TH version)........................................ 01108232
PIC Programming Adaptor...................................................... 24105231
Salad Bowl Speaker crossover................................................ 01109231
AUGUST 2024
Arduino ESR Meter combined L/C-ESR................................. 04106182
Arduino ESR Meter separate ESR........................................... 04106183
Watering System Controller..................................................... 15110231
JULY 2024
Dynamic NFC Tag (22 × 31mm)............................................... 06101231
Dynamic NFC Tag (86 × 54mm)............................................... 06101232
Reciprocal Frequency Counter................................................ CSE230101C
Reciprocal Frequency Counter front panel (black mask)....... CSE230102
Pi Pico-based Thermal Camera............................................... 04105231
JUNE 2024
Loudspeaker Test Jig............................................................... 04106231
PRICE
3.99
3.99
3.99
3.99
4.99
6.99
4.99
4.99
4.99
4.99
4.99
4.99
4.99
4.99
3.99
3.99
4.99
7.99
9.99
7.99
11.99
5.95
7.95
8.95
7.95
6.95
12.95
PROJECT
DECEMBER 2023
CODE
Digital Boost Regulator............................................................ 24110224
Dual-Channel Power Supply for Breadboards........................ 04112221
Display Adaptor for the Breadboard PSU............................... 04112222
LC Meter Mk3........................................................................... CSE220503C 9.95
DC Supply Filter for vehicles.................................................... 08108221
8.95
Discrete Audio Op Amp PCB................................................... AO1-JUL23
9.95
Discrete Audio Op Amp PCB + essential components.......... AO2-JUL23 17.95
OCTOBER 2023
Buck/Boost Charger Adaptor.................................................. 14108221
PIC Breakout Board for SOIC parts........................................ 24110225
PIC Breakout Board for DIP parts........................................... 24110222
AVR64DD32 Breakout board................................................... 24110223
Automatic Train Controller........................................................ 09109221
Chuff Sound module................................................................ 09109222
SEPTEMBER 2023
Mini LED Driver......................................................................... 16106221
New GPS-Synchronised Clock............................................... 19109221
AUGUST 2023
110dB RF Attenuator............................................................... CSE211003
Universal Battery Charge Controller (2023 update)................ 14107192
Wide-Range OhmMeter........................................................... 04109221
JULY 2023
Multimeter Checker/Calibrator................................................ 04107221
MIDI Spectral Sound Synthesiser (full kit – see p.25)............. N/A
JUNE 2023
Arduino Programmable Load................................................... 04105221
Buck-Boost LED Driver............................................................ 16103221
MAY 2023
GPS-Disciplined Oscillator....................................................... 04103231
12.95
Dual RF Amplifier...................................................................... CSE220602A 5.95
Songbird ................................................................................... 08103231
7.95
APRIL 2024
APRIL 2023
Basic RF Signal Generator....................................................... CSE221001
Basic RF Signal Generator front panel (black solder mask)... CSE220902B
Silicon Chirp Cricket................................................................. 08101231
Test Bench ‘Swiss Army Knife’................................................ 04110221
MARCH 2024
Digital Volume Control Potentiometer SMD version............... 01101231
Digital Volume Control Potentiometer through-hole version.. 01101232
Advanced SMD Test Tweezers body....................................... 04106221
Advanced SMD Test Tweezers legs (pair)............................... 04106212
FEBRUARY 2024
Active Mains Soft Starter......................................................... 10110221
JANUARY 2024
Q Meter ................................................................................... CSE220701
Q Meter front panel (black solder mask)................................. CSE220704
Raspberry Pi Pico W BackPack.............................................. 07101221
8.99
9.99
7.99
9.99
8.95
9.95
6.95
7.95
10.95
8.95
7.95
8.95
8.95
11.95
9.95
NOVEMBER 2023
Precision AM-FM DDS Signal Generator................................ CSE211002
Improved SMD Test Tweezers programmed PIC.................... 0410621PIC
AO 2x-dual-to-quad through-hole (pack of five)..................... AO1-MAY23
AO 2x-dual-to-quad SMD (pack of five).................................. AO2-MAY23
AO 2x-single-to-dual through-hole (pack of five).................... AO3-MAY23
AO 2x-single-to-dual SMD (pack of five)................................ AO4-MAY23
MAY 2024
PRICE
9.95
5.95
5.95
5.95
6.95
6.95
7.95
9.95
9.95
9.95
12.95
10.95
N/A
8.95
8.95
14.95
12.95
6.95
6.95
6.95
6.95
500W Amplifier Module............................................................ see p.22, April 2023
Clipping Indicator (per channel)............................................... 01112211
7.95
CD Welder Power Supply (one needed).................................. 29103221
9.95
CD Welder Controller (one needed)......................................... 29103222
9.95
CD Welder Energy Storage module (several needed)............ 29103223
7.95
AO Universal Dual Op Amp Board........................................AO1-APR23
9.95
AO Stereo RIAA precision passives kit for dual op amp.......AO2-APR23
8.95
MARCH 2023
Pico BackPack......................................................................... 07101221
Semaphore Signal (controller).................................................. 09103221
Semaphore Signal (blade)........................................................ 09103222
FEBRUARY 2023
Tesla Coil driver board.............................................................. 26102221
Tesla Coil potentiometer board................................................ 26102222
Cooling Fan Controller & Loudspeaker Protector................... 01102221
Remote Gate Controller........................................................... 11009121
9.95
7.95
5.95
9.95
5.95
8.95
12.95
PCBs for most recent PE/EPE constructional projects are available. From the July 2013 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 Issues page for details.
76
Practical Electronics | November | 2024
Double-sided | plated-through holes | solder mask
PROJECT
JANUARY 2023
CODE
Classic LED Metronome – 8-LED............................................ 23111211
Classic LED Metronome – 10-LED.......................................... 23111212
Multi-Channel Speaker Protector – 6 channel........................ 01101221
Multi-Channel Speaker Protector – 4 channel........................ 01101222
Remote Control Range Extender – IR-to-UHF....................... 15109212
Remote Control Range Extender – UHF-to-IR....................... 15109211
AO Universal Single Op Amp Board......................................AO1-JAN23
DECEMBER 2022
Hummingbird Amplifier............................................................ 01111211
SMD Trainer PCB..................................................................... 29106211A
SMD Trainer PCB + parts......................................................... 29106211B
PRICE
7.95
8.95
9.95
7.95
5.95
7.95
7.95
9.95
8.95
13.95
NOVEMBER 2022
SMD Test Tweezers – PCB and pair of tweezer arms............ 04106211-2
SMD Test Tweezers – programmed PIC12F1572-I/SN.......... 0410621A
Tele-com............................................................................. 12110211
SEPTEMBER 2022
Touchscreen Digital Preamp – main board......................... 01103191
Touchscreen Digital Preamp – adaptor board pair............. 01103192
20A DC Motor Speed Controller........................................ 11006211
AUGUST 2022
Multi-purpose Battery Manager – I/O Expander module... 11104212
Multi-purpose Battery Manager – Switch Module............. 11104211
Simple MIDI Music Keyboard (for 8 switches)................... 23101213
Nano Pong......................................................................... 08105212
11.95
7.95
12.95
12.95
5.95
9.95
5.95
8.95
6.95
7.95
8.95
7.95
10.95
9.95
MAY 2022
Bus board PCB for Analogue Vocoder............................... AO1-MAY22 10.95
Complete set of 14 PCBs for Analogue Vocoder............... AO2-MAY22 97.95
Programmed EEPROM for Digital FX Unit......................... FX1-MAY22 10.95
Programmed PIC for Digital FX Unit using potentiometer....FX2-MAY22
8.95
APRIL 2022
64-key MIDI Matrix shield.................................................. 23101211
8.95
64-key MIDI Matrix switch board....................................... 23101212
11.95
High-current Battery Balancer ........................................... 14102211
10.95
Digital FX Unit – using potentiometer................................. 01102211
9.95
Digital FX Unit – using BCD switch.................................... 01102212
9.95
Universal Audio PSU.......................................................... AO1-APR22 11.95
MARCH 2022
9.95
10.95
10.95
8.95
JANUARY 2022
Vintage battery Radio Li-ion Power Supply....................... 11111201
MiniHeart: A Miniature Heartbeat Simulator....................... 01109201
9.95
8.95
DECEMBER 2021
AM/FM/SW Digital Receiver............................................... CSE200902A 13.95
Balanced Input and Attenuator for USB CODEC............... 01106202
11.95
NOVEMBER 2021
OCTOBER 2021
Mini Wi-Fi LCD BackPack.................................................. 24106201
£6.95
£8.95
For the many pre-2020 PCBs that we stock please see
the PE website: www.electronpublishing.com
PE/EPE PCB SERVICE
Project
Quantity
Price
.........................................................
.........................................................
.........................................................
Silicon Labs AM/FM/SW Radio.......................................... CSE210301C 10.95
Level Crossing Controller................................................... 09108211
6.95
Full-wave Motor Speed Controller..................................... 1010221
PIC Programming Helper for 8-pin PICs only.................... 24106211
PIC Programming Helper for 8, 14 or 20-pin PICs ............ 24106212
Advanced GPS Computer.................................................. 05102211
PRICE
Arduino-based Power Supply............................................ 18106201
Battery Monitor Logger...................................................... 11106201
Electronic Wind Chimes..................................................... 23011201
Analogue Vocoder – Driver Amplifier.................................. AO-FEB22
Order Code
JULY 2022
JUNE 2022
CODE
Dual Battery Lifesaver........................................................ 11111202
USB Cable tester – main PCB................................................. 04108211
12.95
USB Cable tester – front panel................................................ 04108212
5.95
USB Cable tester – optional panel.......................................... SC5970
5.95
Model Railway Carriage Lights – PCB.................................... 09109211
6.95
AO transfmr PCB – standard VTX-A range........................ VTX-101-007 6.95
AO transfmr PCB – dual-outline VTX102-3001/101-3002....VTX-Dual
6.95
OCTOBER 2022
PROJECT
FEBRUARY 2022
Mini Isolated Serial Link..................................................... 24102211
£5.95
Busy Loo Indicator............................................................. 16112201
£5.95
Analogue Vocoder – Band-pass filter board...................... AO1-MAR22 9.95
Analogue Vocoder – HP/LP filter board............................. AO2-MAR22 9.95
.........................................................
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.........................................................
Name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.........................................................
Tel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Email . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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: pe<at>pemag.au
On-line Shop: www.electronpublishing.com
Sorry, cheques cannot be accepted as we are based in Australia and our UK bank account does not allow cheque deposits.
NOTE: Most boards are in stock and sent within seven days of order receipt. Please allow up to 28 days delivery if we need to restock.
Practical Electronics | November | 2024
77
Practical Electronics PCB SERVICE
PROJECT
SEPTEMBER 2021
CODE
PRICE
USB SuperCodec PCB...................................................... 01106201 £14.95
Audio DDS Oscillator PCB................................................. 01110201
£5.95
Audio DDS Oscillator rotary encoder................................. 01110201-ENC 6.95
Programming Adaptor Board for Audio DDS Oscillator..... 01110202
£5.95
High-power Ultrasonic Cleaner main PCB......................... 04105201
£14.95
High-power Ultrasonic Cleaner front-panel PCB............... 04105202
Night Keeper Lighthouse PCB........................................... 08110201
£5.95
AUGUST 2021
Ol’ Timer PCB..................................................................... 19104201 £11.95
Ol’ Timer 8x8 RGB LED module using WS2812B.............. 19104201-88 £8.95
Ol’ Timer set of acrylic case pieces and spacer................ 19104201-ACR £8.75
Ol’ Timer DS3231 RTC IC wide SOIC-16................................ 19104201-RTC £5.95
Wideband Digital RF Power Meter..................................... 04106201
£9.75
Switchmode 78xx regulators (PACK of 5!)........................ 18105201
£7.95
Cool Beans SMAD display................................................. CB-AUG21 £11.95
JULY 2021
ATtiny816 Breakout / Dev Board with Capacitive Touch.... 24110181
£9.75
IR Remote Control Assistant (Jaycar version).................... 15005201
£8.95
IR Remote Control Assistant (Altronics version)................. 15005202
£8.95
PIC18F Development Board............................................... PNM-JUL21 £12.95
Microphone Preamplifier........................................................AO-JUL21 £11.95
JUNE 2021
Roadies’ Test Signal Generator (surface-mount version)... 01005201
Roadies’ Test Signal Generator (through-hole version)...... 01005202
Touchscreen Wide-range RCL Box (Resistor module)....... 04104201
Touchscreen Wide-range RCL Box (Ind/Cap module)....... 04104202
KickStart Part 3 – Gyrator-based Audio Filter.................... KS3-2021
MAY 2021
7-Band Equaliser (Mono).................................................... 01104201
7-Band Equaliser (Stereo).................................................. 01104202
Car Altimeter...................................................................... 05105201
£8.95
£9.95
£18.95
£7.95
£8.95
£10.95
£7.95
APRIL 2021
Reflow Oven – DSP Active Crossover (CPU)..................... 01106193
Reflow Oven – DSP Active Crossover (Front panel)........... 01106195 £19.95
Reflow Oven – DSP Active Crossover (LCD)...................... 01106196
Frequency Reference Signal Distributor..................................... CSE200103 £8.95
MARCH 2021
Nutube Guitar Effects Pedal............................................... 01102201 £12.95
Programmable Thermal Regulator (Peltier Interface)......... 21109181
£18.95
Programmable Thermal Regulator (Peltier Driver).............. 21109182
Tunable HF Preamp............................................................ CSE190502 £8.95
FEBRUARY 2021
4G Remote Monitoring....................................................... 27111191
JANUARY 2021
Nutube Valve Preamplifier.................................................. 01112191
Arduino DCC Controller...................................................... 09207181
DECEMBER 2020
£9.95
£12.95
£10.95
Pseudo-Random Sequence Generator.............................. 16106191
£7.95
Clever Charger................................................................... 14107191 £11.95
PE Theremin Amplifier........................................................ AO-1220-01 £8.95
78
PROJECT
NOVEMBER 2020
CODE
PRICE
LED Christmas Tree (1 off).................................................. 16107181-1 £6.95
LED Christmas Tree (4 off).................................................. 16107181-2 £14.95
LED Christmas Tree (12 off)................................................ 16107181-3 £24.95
LED Christmas Tree (20 off)................................................ 16107181-4 £34.95
USB/SPI Interface Board.................................................... 16107182
£5.95
45V/8A Power Supply PCB plus acrylic spacer................. 18111181 £14.95
45V/8A Power Supply front panel five-way display bezel.. 18111181-BZ £3.95
Five-way LCD Panel Meter/Display.................................... 18111182
£7.95
OCTOBER 2020
Digital Audio Millivoltmeter................................................. 04108191
Precision Signal Amplifier................................................... 04107191
SEPTEMBER 2020
PE Theremin PSU............................................................... AO-0920-01
PE Theremin PSU transformer........................................... AO-0920-02
Micromite Explore-28......................................................... 07108191
Ultrabrite LED Driver.......................................................... 16109191
AUGUST 2020
Micromite LCD BackPack V3............................................. 07106191
Steering Wheel Audio Button to Infrared Adaptor.............. 05105191
£9.95
£7.95
£5.95
£7.95
£6.95
£6.95
£9.95
£7.95
JULY 2020
AM/FM/CW Scanning HF/VHF RF Signal Generator......... 04106191 £13.95
Speech Synthesiser with the Raspberry Pi Zero................ 01106191
£5.95
PE Mini-organ PCB............................................................ AO-0720-01 £14.95
PE Mini-organ selected parts............................................. AO-0720-02 £8.95
High-current Solid-state 12V Battery Isolator – control..... 05106191
£6.95
High-current Solid-state 12V Battery Isolator FET (2oz).... 05106192
£9.95
JUNE 2020
Arduino breakout board – 3.5-inch LCD Display................ 24111181
Six-input Audio Selector main board................................. 01110191
Six-input Audio Selector switch panel board..................... 01110192
£6.95
£10.95
MAY 2020
Ultra-low-distortion Preamplifier Input Selector........................ 01111112
£11.25
Ultra-low-distortion Preamplifier pushbutton Input Selector.... 01111113
Universal Regulator...................................................................... 18103111
£7.95
433MHz Wireless Data Repeater................................................ 15004191
£8.50
Bridge-mode Adaptor for Amplifier............................................ 01105191
£7.95
iCEstick VGA Terminal................................................................. 02103191
£5.95
Analogue noise with tilt control................................................... AO-0520-01 £7.95
Audio Spectrum Analyser............................................................ PM-0520-01 £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
MARCH 2020
Diode Curve Plotter............................................................ 04112181
Steam Train Whistle / Diesel Horn Sound Generator................ 09106181
Universal Passive Crossover (one off)........................................ UPC0320
FEBRUARY 2020
Motion-Sensing 12V Power Switch.................................... 05102191
USB Keyboard / Mouse 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 (Front panel)................................... 01106195
DSP Active Crossover (LCD).............................................. 01106196
£14.95
£10.95
£8.50
£12.50
£5.95
£8.50
£29.95
Practical Electronics | November | 2024
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