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Forum: Hobby Circuits and Small Projects Problems

Hobby Electronics Circuits, circuits samples, electronics in house and in cars, amplifiers, subwoofers, trasmitters, receivers, generators, meters.

  1. Sticky Thread Sticky: Can anyone ID these chips?

    Started by lteschler, 22nd November 2016 15:08
    2 Attachment(s)
    • Replies: 1
    • Views: 11,128
    d123
    22nd November 2016, 22:02 Go to last post

  2. Sticky Thread Sticky: Everything you wanted to know about soldering and desoldering but were afraid to ask

    Started by E-design, 2nd July 2013 08:01
    • Replies: 4
    • Views: 20,940
    Rattanee
    2nd August 2014, 19:26 Go to last post

  3. Sticky Thread Sticky: Read this before posting.

    Started by pranam77, 21st August 2009 09:14
    • Replies: 0
    • Views: 24,149
    pranam77
    21st August 2009, 09:14 Go to last post

  1. First 555 timer circuit, bunch of questions using a relay

    Started by kingtal0n, Yesterday 07:49
    1 Attachment(s)
    • Replies: 10
    • Views: 508
    kingtal0n
    Today, 13:41 Go to last post

  2. Help to make circuit for Nerve Stimulation Device

    Started by samoel12, 25th March 2019 17:17
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 24
    • Views: 5,750
    FvM
    Yesterday, 10:46 Go to last post

  3. [SOLVED] Help required for Arduino Uno Heater Controller

    Started by chi239, 17th April 2019 07:28
    • Replies: 8
    • Views: 639
    chi239
    20th April 2019, 06:30 Go to last post

  4. efficient led driver circuit?

    Started by Javid.zare.s, 6th April 2019 12:34
    5 Attachment(s)
    • Replies: 16
    • Views: 563
    Audioguru
    16th April 2019, 01:30 Go to last post

  5. Car amplifier at home (diy)

    Started by evolandlupiz, 14th April 2019 23:12
    1 Attachment(s)
    • Replies: 2
    • Views: 232
    Audioguru
    15th April 2019, 16:57 Go to last post

  6. Building a heat gun out of hair dryer?

    Started by Javid.zare.s, 11th April 2019 22:28
    1 Attachment(s)
    • Replies: 1
    • Views: 272
    dick_freebird
    11th April 2019, 22:55 Go to last post

  7. Constant 12V to momentary

    Started by DPluss, 8th April 2019 07:57
    • Replies: 6
    • Views: 1,094
    betwixt
    11th April 2019, 10:14 Go to last post

  8. Help re-creating a replica movie prop

    Started by skarkowtsky, 9th October 2018 20:30
    10 Pages •
    1 2 3 ... 10
    43 Attachment(s)
    • Replies: 184
    • Views: 9,933
    d123
    10th April 2019, 09:25 Go to last post

  9. Laser Security System not working on Proteus Schematic

    Started by FelixIG15, 3rd April 2019 15:43
    1 Attachment(s)
    • Replies: 2
    • Views: 1,033
    Nik_2213
    4th April 2019, 04:15 Go to last post

  10. CT clamp unit which can send data remotely using a sim card?

    Started by barnaby.hill, 3rd April 2019 15:49
    • Replies: 0
    • Views: 105
    barnaby.hill
    3rd April 2019, 15:49 Go to last post

  11. [SOLVED] Rtc ds3231 with arduino

    Started by shubham kumar, 26th March 2019 07:47
    • Replies: 2
    • Views: 478
    shubham kumar
    26th March 2019, 10:43 Go to last post

  12. 1500mW laser diode question

    Started by boylesg, 22nd March 2019 13:54
    • Replies: 13
    • Views: 1,266
    FvM
    23rd March 2019, 19:15 Go to last post

  13. Should I replace DMM fuse with resetable PTC?

    Started by harvie, 22nd March 2019 12:40
    • Replies: 3
    • Views: 414
    barry
    22nd March 2019, 23:38 Go to last post

  14. Room Temperature using MCU

    Started by venkates2218, 18th March 2019 09:19
    • Replies: 4
    • Views: 560
    venkates2218
    18th March 2019, 13:35 Go to last post

  15. verilog code for Kogge Stone adder

    Started by venkatesh_247, 15th March 2019 18:18
    • Replies: 3
    • Views: 435
    venkatesh_247
    16th March 2019, 06:25 Go to last post

  16. [SOLVED] Display suggestion for tractor cabin mounted device

    Started by gizzard, 24th February 2019 11:03
    • Replies: 10
    • Views: 1,262
    gizzard
    10th March 2019, 02:15 Go to last post

  17. Good quality sound using Microcontroller

    Started by shubham kumar, 27th February 2019 12:10
    2 Attachment(s)
    • Replies: 14
    • Views: 1,451
    shubham kumar
    8th March 2019, 12:29 Go to last post

  18. Which Display is good for long time users?

    Started by Graphicitbd, 6th March 2019 07:21
    2 Attachment(s)
    • Replies: 1
    • Views: 280
    KlausST
    6th March 2019, 07:49 Go to last post

  19. I Blew up Two 12V CPU fans.

    Started by thirtyonemessier, 5th March 2019 17:09
    • Replies: 2
    • Views: 287
    betwixt
    5th March 2019, 20:34 Go to last post

  20. Power adaptor for battery charger compatability

    Started by 12strings, 3rd March 2019 04:26
    • Replies: 4
    • Views: 544
    12strings
    4th March 2019, 02:20 Go to last post

  21. how to damp sim800 gsm noise on adc

    Started by m3r, 2nd March 2019 07:50
    3 Attachment(s)
    • Replies: 8
    • Views: 460
    m3r
    2nd March 2019, 16:46 Go to last post

  22. Chaining Optical Endstops

    Started by Lilithet, 25th February 2019 09:58
    2 Attachment(s)
    • Replies: 12
    • Views: 765
    Lilithet
    27th February 2019, 10:26 Go to last post

  23. Open collector output arduino with led with PLC inputs problem

    Started by Big_Joe2, 11th February 2019 23:52
    2 Attachment(s)
    • Replies: 5
    • Views: 609
    betwixt
    21st February 2019, 09:49 Go to last post

  24. Circuit for NPP-301A 100PSI IC (Pressure sensor) combined with MAX1472 RF Transmitter

    Started by NairVI, 17th February 2019 16:30
    4 Attachment(s)
    • Replies: 3
    • Views: 389
    NairVI
    19th February 2019, 19:15 Go to last post

  25. Can anyone help with this Tesla coil?

    Started by Aidan5566, 18th February 2019 17:37
    2 Attachment(s)
    • Replies: 3
    • Views: 330
    betwixt
    18th February 2019, 23:04 Go to last post

  26. nRF24L01 and ESP8266 in Arduino UNO

    Started by anneshabaruah, 11th February 2019 12:49
    • Replies: 9
    • Views: 911
    andre_teprom
    12th February 2019, 13:32 Go to last post

  27. replacing speaker with aux cable??

    Started by Javid.zare.s, 5th February 2019 10:10
    5 Attachment(s)
    • Replies: 7
    • Views: 936
    Audioguru
    7th February 2019, 19:07 Go to last post

  28. IR photo transistor replacement, help needed

    Started by Javid.zare.s, 6th February 2019 12:04
    2 Attachment(s)
    • Replies: 3
    • Views: 601
    betwixt
    6th February 2019, 21:04 Go to last post

  29. How do you trigger a triac?

    Started by boylesg, 6th February 2019 02:33
    1 Attachment(s)
    • Replies: 3
    • Views: 412
    schmitt trigger
    6th February 2019, 17:00 Go to last post

  30. Proteus 8.8 Through-hole library problem

    Started by stoykus, 5th February 2019 12:35
    • Replies: 0
    • Views: 313
    stoykus
    5th February 2019, 12:35 Go to last post
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