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Practical Electronics PCB SERVICE PROJECT APRIL 2021 CODE e o ven ctive e o ven ctive e o ven ctive re uency e erence ignal rossover .................... 01106193 rossover ront anel ......... rossover .................... 01106196 istri utor.................................... MARCH 2021 utu e uitar ects edal .............................................. rogra a le her al egulator eltier nter ace ........ rogra a le her al egulator eltier river ............ una le rea .......................................................... FEBRUARY 2021 e ote onitoring ...................................................... JANUARY 2021 utu e alve rea lifier ................................................. rduino ontroller ..................................................... DECEMBER 2020 seudo ando e uence enerator ............................. lever harger .................................................................. here in lifier ....................................................... NOVEMBER 2020 ive hrist as ree o ................................................ hrist as ree o ................................................ hrist as ree o .............................................. hrist as ree o .............................................. nter ace oard ................................................... o er u ly plus acrylic s acer ................. o er u ly ront anel five ay dis lay e el .. ay anel eter is lay ................................... OCTOBER 2020 igital udio illivolt eter................................................. recision ignal lifier .................................................. SEPTEMBER 2020 here in ............................................................. here in trans or er .......................................... icro ite lore ......................................................... ltra rite river ......................................................... AUGUST 2020 icro ite ac ac ............................................ teering heel udio utton to n rared da tor .............. JULY 2020 canning ignal enerator ........ eech ynthesiser ith the as erry i ero ............... ini organ ........................................................... ini organ selected arts ............................................ igh current olid state attery solator control ..... igh current olid state attery solator o ... JUNE 2020 rduino rea out oard . inch is lay ............... i in ut udio elector ain oard ................................. i in ut udio elector s itch anel oard ..................... PRICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PROJECT MAY 2020 CODE ltra lo distortion rea lifier n ut elector ......................... ltra lo distortion rea lifier ush utton n ut elector ..... 01111113 niversal egulator .................................................................... ireless ata e eater .............................................. ridge ode da tor or lifier ............................................. i stic er inal ................................................................ nalogue noise ith tilt control ................................................... udio ectru nalyser ........................................................... PRICE . . . . . . . APRIL 2020 li li li li dot dot dot dot is lay lac coil oard................................................. is lay lac i els ....................................................... is lay lac ra e ....................................................... is lay green driver oard ............................................ MARCH 2020 iode urve lotter ........................................................... tea rain histle iesel orn ound enerator ............... niversal assive rossover one o ...................................... FEBRUARY 2020 otion ensing o er itch ................................... ey oard ouse da tor........................................ ctive rossover ............................................ 01106191 ctive rossover ...................................... ctive rossover ............................................ ctive rossover o er routing .............................. 01106194 ctive rossover ront anel .................................. 01106195 ctive rossover ............................................. 01106196 JANUARY 2020 solated erial in ............................................................ DECEMBER 2019 tre ely ensitive agneto eter ................................... our channel igh current an and u ontroller ... seless o ....................................................................... NOVEMBER 2019 innitus innitus nso nia iller nso nia iller . . . . . . . . . . . aycar case see te t ........... ltronics case see te t ........ . . rogra a le synced re uency e erence .......... igital o and ontrol rogra er or ecoders ........ to isolated ains elay ain oard ........................... to isolated ains elay ter inal e tension oard ... . . OCTOBER 2019 AUGUST 2019 rain ave onitor ............................................................. u er igital ound ects odule .................................. atchdog lar ................................................................ here in three oards itch volu e ............. here in co onent ac see . ugust ... JULY 2019 ull ave niversal otor eed ontroller .............. ecurring vent e inder ................................................ e erature itch ................................................... JUNE 2019 rduino ased eter ................................................... le iti er................................................................... . . . . . . . . . . . s or ost recent PE EPE constructional ro ects are availa le. ro the uly issue on ards s ith eight digit codes have sil screen overlays and here a lica le are dou le sided have lated through holes and solder as . hey are si ilar to hotos in the ro ect articles. arlier s are li ely to e ore asic and ay not include sil screen overlay e single sided lac lated through holes and solder as . l ays chec rice and availa ility in the latest issue or online. large nu er o older oards are listed or ordering on our e site. 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. ac issues o articles are availa le see ac ssues age or details. 66 Practical Electronics | April | 2021 Double-sided | plated-through holes | solder mask PROJECT MAY 2019 CODE 2× 12V Battery Balancer ................................................... 14106181 Deluxe Frequency Switch .................................................. 05104181 USB Port Protector ............................................................ 07105181 APRIL 2019 Heater Controller ............................................................... 10104181 MARCH 2019 10-LED Bargraph Main Board ........................................... 04101181 +Processing Board ............................................. 04101182 FEBRUARY 2019 1.5kW Induction Motor Speed Controller........................... 10105122 NOVEMBER 2018 Super-7 AM Radio Receiver .............................................. 06111171 OCTOBER 2018 6GHz+ Touchscreen Frequency Counter .......................... 04110171 Two 230VAC MainsTimers ................................................ 10108161 10108162 SEPTEMBER 2018 3-Way Active Crossover .................................................... 01108171 Ultra-low-voltage Mini LED Flasher ................................... 16110161 AUGUST 2018 PRICE £5.60 £10.45 £5.60 £14.00 AUGUST 2017 £12.88 High Performance RF Prescaler........................................ 04112162 Micromite BackPack V2..................................................... 07104171 Microbridge ........................................................................ 24104171 APRIL 2018 Spring Reverberation Unit ................................................. 01104171 DDS Sig Gen Lid ............................................................... Black DDS Sig Gen Lid ............................................................... Blue DDS Sig Gen Lid ............................................................... Clear FEBRUARY 2018 GPS-Synchronised Analogue Clock Driver ....................... 04202171 High-Power DC Motor Speed Controller – Part 2 + Control Board ................................................... 11112161 + Power Board .................................................... 11112162 JANUARY 2018 High-Power DC Motor Speed Controller – Part 1 .............. 11112161 uild the lifier odule ..................................... 01108161 Micromite-Based Super Clock ........................................... 07102122 Brownout Protector for Induction Motors ........................... 10107161 JUNE 2017 Ultrasonic Garage Parking Assistant ................................. 07102122 Hotel Safe Alarm................................................................ 03106161 £10.45 £8.00 £10.45 £12.90 £10.45 £8.00 PE/EPE PCB SERVICE £15.30 £10.45 £10.45 £5.60 £13.95 £8.05 £7.05 £8.05 MARCH 2018 Stationmaster Main Board ................................................. 09103171 + Controller Board .............................................. 09103172 lifier odule o er u ly .......................... 01109111 JULY 2017 £12.88 £7.05 £17.75 £12.88 MAY 2018 Micromite-Based Touch-screen Boat Computer GPS ....... 07102122 Fridge/Freezer Alarm ......................................................... 03104161 £12.88 £8.00 £5.60 £8.00 For the many pre-2017 PCBs that we stock please see the PE website: www.electronpublishing.com Touchscreen Appliance Energy Meter – Part 1 ................. 04116061 uto otive ensor odifier .............................................. 05111161 High Performance 10-Octave Stereo Graphic Equaliser ... 01105171 Compact 8-Digit Frequency Meter..................................... 04105161 £15.35 £22.60 £5.60 £27.50 JUNE 2018 50A Battery Charger Controller ......................................... 11111161 Micropower LED Flasher (45 × 47mm) ......................... 16109161 (36 × 13mm) ......................... 16109162 Phono Input Converter ...................................................... 01111161 £35.00 £12.88 PRICE NOVEMBER 2017 SEPTEMBER 2017 £27.50 CODE Precision Voltage and Current Reference – Part 2............ 04110161 £11.25 £8.60 Universal Temperature Alarm ............................................ 03105161 Power Supply For Battery-Operated Valve Radios ........... 18108171 18108172 18108173 18108174 JULY 2018 PROJECT DECEMBER 2017 Order Code Project Quantity Price ......................................................... ......................................................... ......................................................... ......................................................... ......................................................... Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......................................................... Tel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Email . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . £17.75 I enclose payment of £ . . . . . . . . . . . . . . (cheque/PO in £ sterling only) £16.45 payable to: Practical Electronics £12.88 £12.88 £15.30 £12.88 £12.88 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 he ues should e ade aya le to ractical lectronics (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 | April | 2021 67