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Threads 1 to 30 of 11089

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: 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: 25,600
    Rattanee
    2nd August 2014, 19:26 Go to last post

  2. Sticky Thread Sticky: Read this before posting.

    Started by pranam77, 21st August 2009 09:14
    • Replies: 0
    • Views: 28,056
    pranam77
    21st August 2009, 09:14 Go to last post

  1. Old capacitor needs replacing not sure what to replace with.

    Started by crysotyle, 9th February 2020 18:52
    3 Attachment(s)
    • Replies: 15
    • Views: 960
    FvM
    11th February 2020, 23:44 Go to last post

  2. load sensing circuit/relay

    Started by Wdnbob, 19th January 2020 19:05
    3 Attachment(s)
    • Replies: 10
    • Views: 1,030
    Wdnbob
    6th February 2020, 13:27 Go to last post

  3. how to measure the current consumption by dc motor

    Started by arunmosespaul, 4th February 2020 03:01
    1 Attachment(s)
    • Replies: 2
    • Views: 368
    Audioguru
    4th February 2020, 16:17 Go to last post

  4. Need help in using Arduino or Raspberry pi

    Started by mrshell, 1st February 2020 11:15
    • Replies: 3
    • Views: 404
    KlausST
    1st February 2020, 16:19 Go to last post

  5. I have some beginner-level questions about this ESP-WROOM-32 schematic.

    Started by seanmchugh513, 25th January 2020 18:58
    1 Attachment(s)
    • Replies: 3
    • Views: 562
    KlausST
    29th January 2020, 09:06 Go to last post

  6. very simple and short inverter circuit

    Started by gillani, 17th January 2020 20:38
    1 Attachment(s)
    • Replies: 3
    • Views: 492
    Audioguru
    26th January 2020, 23:26 Go to last post

  7. Looking for mini linear motor

    Started by BoopathiS, 25th January 2020 09:11
    • Replies: 1
    • Views: 349
    wwfeldman
    25th January 2020, 22:13 Go to last post

  8. Maestro GPS module A2235-H UART data halted after 135 seconds ??

    Started by JuhaH, 23rd January 2020 08:56
    • Replies: 1
    • Views: 357
    JuhaH
    24th January 2020, 08:37 Go to last post

  9. Motor pump starter connection with two relay to operate manual and auto

    Started by dattlara76, 15th January 2020 12:00
    1 Attachment(s)
    • Replies: 9
    • Views: 828
    dattlara76
    20th January 2020, 18:31 Go to last post

  10. [SOLVED] Inflatable Hard Drive - transferal of data between three devices via USB

    Started by wizman, 3rd January 2020 14:58
    4 Attachment(s)
    • Replies: 11
    • Views: 1,215
    wizman
    20th January 2020, 14:38 Go to last post

  11. Connecting pins to wires

    Started by shivasage, 16th January 2020 04:41
    • Replies: 4
    • Views: 525
    shivasage
    16th January 2020, 18:42 Go to last post

  12. [SOLVED] Need very basic R-C "delay off" circuit

    Started by areddon, 14th January 2020 06:42
    2 Attachment(s)
    • Replies: 7
    • Views: 720
    Easy peasy
    15th January 2020, 05:26 Go to last post

  13. Bootstrapping board for programming the ESP32

    Started by DihydrogenMonoxide, 12th January 2020 00:05
    1 Attachment(s)
    • Replies: 6
    • Views: 641
    betwixt
    14th January 2020, 23:40 Go to last post

  14. [SOLVED] Trouble with frying 74LS11N AND Gate

    Started by areddon, 13th January 2020 00:19
    1 Attachment(s)
    • Replies: 7
    • Views: 706
    areddon
    14th January 2020, 05:04 Go to last post

  15. How to design a DC block circuit

    Started by Sattek, 10th January 2020 03:53
    • Replies: 6
    • Views: 669
    KlausST
    10th January 2020, 21:46 Go to last post

  16. SHUNT resistances value

    Started by tnnedaboard, 8th January 2020 11:13
    2 Attachment(s)
    • Replies: 4
    • Views: 576
    tnnedaboard
    9th January 2020, 08:44 Go to last post

  17. High Voltage Resistor divider

    Started by a.singh123, 6th January 2020 22:23
    1 Attachment(s)
    • Replies: 5
    • Views: 602
    KlausST
    8th January 2020, 21:56 Go to last post

  18. Directivity of Radar Sensor HFS-DC06H

    Started by emaq, 3rd January 2020 09:04
    2 Attachment(s)
    • Replies: 0
    • Views: 338
    emaq
    3rd January 2020, 09:04 Go to last post

  19. ESP32 DevKitC schematic questions

    Started by DihydrogenMonoxide, 31st December 2019 04:13
    1 Attachment(s)
    • Replies: 5
    • Views: 694
    KlausST
    1st January 2020, 00:47 Go to last post

  20. Infrared led circuit board (noob)

    Started by Will_infrared, 27th December 2019 13:21
    3 Attachment(s)
    • Replies: 1
    • Views: 471
    FvM
    27th December 2019, 14:14 Go to last post

  21. Short Circuit protection Using Relay

    Started by rmrps, 26th December 2019 09:24
    1 Attachment(s)
    • Replies: 2
    • Views: 463
    gauravkothari23
    26th December 2019, 19:39 Go to last post

  22. Rectifier diodes with bypass cap´s & gounding speaker basket´s

    Started by mikaelmark, 16th November 2019 12:31
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 35
    • Views: 3,473
    betwixt
    22nd December 2019, 20:30 Go to last post

  23. Resonant Converter Simulation Problem

    Started by fethiyeli, 20th November 2019 08:17
    3 Attachment(s)
    • Replies: 13
    • Views: 2,607
    fethiyeli
    17th December 2019, 19:08 Go to last post

  24. Help to to build the perfect bluetooth talking device

    Started by mariah1902, 17th December 2019 09:20
    • Replies: 1
    • Views: 402
    KlausST
    17th December 2019, 12:18 Go to last post

  25. [SOLVED] Transformers on a PCB

    Started by inklen, 13th December 2019 11:24
    3 Attachment(s)
    • Replies: 10
    • Views: 1,238
    inklen
    14th December 2019, 13:20 Go to last post

  26. Is there any tips for designing a differentail Amplifer?

    Started by neil88787, 13th December 2019 04:27
    • Replies: 2
    • Views: 484
    BradtheRad
    13th December 2019, 05:19 Go to last post

  27. MOC3020/BTA41 circuit problem

    Started by abuhafss, 10th December 2019 16:26
    5 Attachment(s)
    • Replies: 10
    • Views: 1,135
    betwixt
    11th December 2019, 10:12 Go to last post

  28. Connect MQ135 Gas Sensor to Raspberry Pi 3B+

    Started by cloner, 5th December 2019 14:52
    1 Attachment(s)
    • Replies: 7
    • Views: 1,002
    andre_teprom
    9th December 2019, 13:38 Go to last post

  29. Charging Voltage for a 1.2V NiMH Battery

    Started by littlerock, 4th December 2019 10:47
    1 Attachment(s)
    • Replies: 11
    • Views: 1,268
    ZASto
    7th December 2019, 09:36 Go to last post

  30. Arduino based irrigation controller misbheaving at a particular site.

    Started by boylesg, 4th December 2019 12:05
    2 Attachment(s)
    • Replies: 7
    • Views: 853
    boylesg
    6th December 2019, 01:32 Go to last post
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