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Threads 1 to 30 of 11142

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: 26,631
    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: 28,918
    pranam77
    21st August 2009, 09:14 Go to last post

  1. water tornado device

    Started by rajaram04, Yesterday 15:22
    • Replies: 1
    • Views: 102
    betwixt
    Yesterday, 16:07 Go to last post

  2. Most efficient method of smoke extraction

    Started by dexterbot80, 25th May 2020 00:40
    • Replies: 3
    • Views: 258
    dexterbot80
    25th May 2020, 18:53 Go to last post

  3. Class C amplifier biasing.

    Started by paulmdrdo, 23rd May 2020 12:44
    1 Attachment(s)
    • Replies: 5
    • Views: 420
    albbg
    24th May 2020, 21:53 Go to last post

  4. Will a filter block this waveform?

    Started by dl09, 22nd May 2020 15:01
    2 Pages •
    1 2
    6 Attachment(s)
    • Replies: 25
    • Views: 649
    FvM
    23rd May 2020, 17:16 Go to last post

  5. Bias clamper for class C amplifier

    Started by paulmdrdo, 23rd May 2020 07:27
    1 Attachment(s)
    • Replies: 3
    • Views: 238
    KlausST
    23rd May 2020, 12:09 Go to last post

  6. Problem with current loss with increasing length of wire

    Started by rajaram04, 20th May 2020 18:03
    • Replies: 7
    • Views: 544
    rajaram04
    21st May 2020, 22:43 Go to last post

  7. Help identifying some parts

    Started by cabinfourus, 19th May 2020 17:04
    4 Attachment(s)
    • Replies: 7
    • Views: 315
    Akanimo
    20th May 2020, 12:20 Go to last post

  8. Foldback current protection for sink circuit

    Started by seyyah, 18th May 2020 16:40
    3 Attachment(s)
    • Replies: 9
    • Views: 393
    seyyah
    19th May 2020, 22:00 Go to last post

  9. A "separated double pole switch with a single throw" ( two separate switched ccts)

    Started by treez, 18th May 2020 19:50
    • Replies: 4
    • Views: 282
    KlausST
    19th May 2020, 06:26 Go to last post

  10. 100uA analogue meter conversion to 1A?

    Started by neazoi, 17th May 2020 23:44
    • Replies: 16
    • Views: 664
    dick_freebird
    19th May 2020, 02:45 Go to last post

  11. DC Motor with variable speed project

    Started by CharlN, 16th May 2020 18:52
    • Replies: 3
    • Views: 270
    d123
    17th May 2020, 06:59 Go to last post

  12. Want to make a small device to detect when a single LED is lit -- Feasible?

    Started by ptwego, 15th May 2020 21:27
    1 Attachment(s)
    • Replies: 6
    • Views: 332
    danadakk
    16th May 2020, 13:46 Go to last post

  13. Safe distance device RF or BLE or other?

    Started by paulteo84, 15th May 2020 12:59
    • Replies: 1
    • Views: 205
    srizbf
    15th May 2020, 15:50 Go to last post

  14. Help needed, what is this component used for? Mark:95H6ZI

    Started by detail2mix, 13th May 2020 08:15
    2 Attachment(s)
    • Replies: 11
    • Views: 564
    detail2mix
    13th May 2020, 14:47 Go to last post

  15. An old exam problem related to an amplifier

    Started by Wow_01, 12th May 2020 09:54
    2 Attachment(s)
    • Replies: 8
    • Views: 440
    albbg
    13th May 2020, 07:02 Go to last post

  16. separate case fan control

    Started by second_decimal, 5th May 2020 21:09
    4 Attachment(s)
    • Replies: 2
    • Views: 1,511
    second_decimal
    6th May 2020, 01:23 Go to last post

  17. help needed to repair toy quadcopter

    Started by fm101, 17th April 2020 10:44
    1 Attachment(s)
    • Replies: 5
    • Views: 697
    i200yrs
    3rd May 2020, 07:13 Go to last post

  18. Electric pump to dispense the hand sanitizer gel

    Started by tnnedaboard, 20th April 2020 13:21
    1 Attachment(s)
    • Replies: 5
    • Views: 596
    BradtheRad
    1st May 2020, 08:34 Go to last post

  19. Simple a.m modulator output not what I expect?

    Started by voxmagna, 19th April 2020 16:52
    6 Attachment(s)
    • Replies: 11
    • Views: 833
    voxmagna
    30th April 2020, 18:22 Go to last post

  20. Working of a FM receiver

    Started by garvind25, 27th April 2020 21:05
    1 Attachment(s)
    • Replies: 6
    • Views: 1,241
    Audioguru
    29th April 2020, 00:23 Go to last post

  21. Gel disinfectant distributor circuit

    Started by tnnedaboard, 28th April 2020 09:22
    1 Attachment(s)
    • Replies: 7
    • Views: 1,131
    stenzer
    28th April 2020, 15:01 Go to last post

  22. level-shifting I2C bus when VCC1 is +3.3V, and VCC2 is varying between +2.8V and +4.2

    Started by kender, 27th April 2020 17:01
    1 Attachment(s)
    • Replies: 7
    • Views: 549
    KlausST
    28th April 2020, 14:04 Go to last post

  23. Small DC motor / switch project

    Started by Vollmer, 24th April 2020 00:38
    1 Attachment(s)
    • Replies: 9
    • Views: 861
    betwixt
    26th April 2020, 21:14 Go to last post

  24. How to make 3 different voltages in a circuit?

    Started by q1212, 24th April 2020 20:20
    • Replies: 3
    • Views: 485
    d123
    26th April 2020, 07:47 Go to last post

  25. adjustable delay unit (555 timer)

    Started by Swagger_Dancer, 19th April 2020 17:57
    7 Attachment(s)
    • Replies: 13
    • Views: 1,055
    d123
    21st April 2020, 17:29 Go to last post

  26. Replacing relay to trigger a device input

    Started by seyyah, 16th April 2020 05:27
    6 Attachment(s)
    • Replies: 16
    • Views: 1,190
    KlausST
    21st April 2020, 15:20 Go to last post

  27. LED device driver using platform device driver and dts in Raspberry pi 3b+.

    Started by anilrockstar, 18th April 2020 01:12
    • Replies: 0
    • Views: 370
    anilrockstar
    18th April 2020, 01:12 Go to last post

  28. the output frequency of the 74ls294 seems too high?

    Started by dl09, 12th April 2020 16:03
    1 Attachment(s)
    • Replies: 8
    • Views: 774
    Audioguru
    16th April 2020, 23:46 Go to last post

  29. voltage fluctuation observed in two parallel Li-socl2 battery

    Started by karan29, 15th April 2020 16:01
    1 Attachment(s)
    • Replies: 3
    • Views: 419
    KlausST
    15th April 2020, 19:01 Go to last post

  30. Laser diode from printer

    Started by Goldenshuttle, 15th April 2020 04:43
    • Replies: 1
    • Views: 359
    BradtheRad
    15th April 2020, 07:40 Go to last post
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