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Threads 1 to 30 of 11065

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: 23,136
    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: 25,746
    pranam77
    21st August 2009, 09:14 Go to last post

  1. MOC3020/BTA41 circuit problem

    Started by abuhafss, 10th December 2019 16:26
    5 Attachment(s)
    • Replies: 10
    • Views: 318
    betwixt
    Yesterday, 10:12 Go to last post

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

    Started by cloner, 5th December 2019 14:52
    1 Attachment(s)
    • Replies: 7
    • Views: 370
    andre_teprom
    9th December 2019, 13:38 Go to last post

  3. Rectifier diodes with bypass capīs & gounding speaker basketīs

    Started by mikaelmark, 16th November 2019 12:31
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 33
    • Views: 1,356
    c_mitra
    8th December 2019, 18:03 Go to last post

  4. Charging Voltage for a 1.2V NiMH Battery

    Started by littlerock, 4th December 2019 10:47
    1 Attachment(s)
    • Replies: 11
    • Views: 523
    ZASto
    7th December 2019, 09:36 Go to last post

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

    Started by boylesg, 4th December 2019 12:05
    2 Attachment(s)
    • Replies: 7
    • Views: 365
    boylesg
    6th December 2019, 01:32 Go to last post

  6. How to create a voltage selector circuit

    Started by kmesne, 4th December 2019 23:16
    2 Attachment(s)
    • Replies: 6
    • Views: 325
    FvM
    5th December 2019, 11:15 Go to last post

  7. how to determine the resistance of a running circuit

    Started by farzadlatifeh, 4th December 2019 14:00
    • Replies: 5
    • Views: 294
    Cornell_Bill
    5th December 2019, 07:14 Go to last post

  8. LM5642 buck converter not work

    Started by SILVESTROS9, 1st December 2019 23:33
    4 Attachment(s)
    • Replies: 7
    • Views: 446
    BradtheRad
    5th December 2019, 05:37 Go to last post

  9. VU Meter only with 1LED (PWM) no IC except for OPAMP

    Started by kmesne, 2nd December 2019 14:41
    • Replies: 6
    • Views: 288
    betwixt
    4th December 2019, 16:29 Go to last post

  10. Old Altera FPGA EPM7128

    Started by clros, 3rd December 2019 21:28
    • Replies: 5
    • Views: 293
    spudboy488
    4th December 2019, 13:29 Go to last post

  11. LCD and DFplayer working simultaneously

    Started by muphy, 27th November 2019 13:18
    • Replies: 3
    • Views: 311
    shubham kumar
    3rd December 2019, 02:08 Go to last post

  12. Automotive toggle switch on PCB solutions?

    Started by Nabors, 30th November 2019 01:04
    • Replies: 1
    • Views: 241
    BradtheRad
    30th November 2019, 08:01 Go to last post

  13. Resonant Converter Simulation Problem

    Started by fethiyeli, 20th November 2019 08:17
    3 Attachment(s)
    • Replies: 7
    • Views: 585
    fethiyeli
    27th November 2019, 11:26 Go to last post

  14. DRV8874 OrCAD PSpice Simulation Help

    Started by bawdog, 24th November 2019 00:05
    3 Attachment(s)
    • Replies: 7
    • Views: 562
    srizbf
    25th November 2019, 08:09 Go to last post

  15. Need circuit of Charger sans-fill

    Started by Soltane, 24th November 2019 22:58
    • Replies: 1
    • Views: 281
    BradtheRad
    25th November 2019, 07:19 Go to last post

  16. Switch +/- 15v supply for audio preamp

    Started by benbiles, 19th November 2019 06:06
    • Replies: 6
    • Views: 492
    benbiles
    20th November 2019, 09:14 Go to last post

  17. [moved] Video transmitter for TV

    Started by bodzio_stawski, 12th November 2019 19:11
    • Replies: 3
    • Views: 327
    BigBoss
    20th November 2019, 07:52 Go to last post

  18. Solar Monitor Box PCB fix

    Started by Aussie_Brewster, 14th November 2019 08:42
    1 Attachment(s)
    • Replies: 1
    • Views: 253
    betwixt
    14th November 2019, 10:02 Go to last post

  19. Suggestions for Intercom Gateway

    Started by victorjohn9211, 14th November 2019 05:57
    • Replies: 0
    • Views: 158
    victorjohn9211
    14th November 2019, 05:57 Go to last post

  20. Heating a cuvette which is placed in a box.

    Started by Prem Arjun, 13th November 2019 17:47
    • Replies: 1
    • Views: 205
    wwfeldman
    13th November 2019, 18:04 Go to last post

  21. Help to build my auto disconnecting circuit.

    Started by mariah1902, 10th November 2019 18:33
    • Replies: 10
    • Views: 683
    mariah1902
    12th November 2019, 10:26 Go to last post

  22. Advice please making PCBs using Press n Peel film

    Started by ljcox, 5th November 2019 04:13
    • Replies: 6
    • Views: 662
    RushPCBUSA
    10th November 2019, 21:34 Go to last post

  23. Symmetric Source + 10V and -10V - help me !!

    Started by enfotec, 6th November 2019 01:15
    1 Attachment(s)
    • Replies: 4
    • Views: 571
    BradtheRad
    8th November 2019, 07:19 Go to last post

  24. Small Project archery aiming assist

    Started by dalep, 6th November 2019 17:59
    1 Attachment(s)
    • Replies: 3
    • Views: 409
    dalep
    7th November 2019, 22:08 Go to last post

  25. Automatic light control circuit (On-Off)

    Started by sareehy, 30th October 2019 18:48
    3 Attachment(s)
    • Replies: 11
    • Views: 934
    sareehy
    6th November 2019, 21:00 Go to last post

  26. [SOLVED] Protect FPGA Pin from negative voltage

    Started by clros, 1st November 2019 11:37
    3 Attachment(s)
    • Replies: 18
    • Views: 866
    KlausST
    5th November 2019, 08:50 Go to last post

  27. Relay substitution and other help with Solar powered plant watering machine

    Started by Tryptamine, 3rd November 2019 18:18
    1 Attachment(s)
    • Replies: 2
    • Views: 349
    KlausST
    4th November 2019, 01:59 Go to last post

  28. PCB Christmas tree Ornaments

    Started by hobbyProgrammer, 29th October 2019 16:40
    • Replies: 1
    • Views: 369
    ads-ee
    29th October 2019, 17:08 Go to last post

  29. PC based Oscilloscopes

    Started by electronicsman, 30th June 2019 12:31
    • Replies: 11
    • Views: 1,184
    Kiriakos-GR
    29th October 2019, 13:47 Go to last post

  30. 2nd order Butter LPF is required with ,modules of multiplier, adder, D flip flop

    Started by Delta14, 28th October 2019 06:45
    • Replies: 3
    • Views: 343
    FvM
    28th October 2019, 22:48 Go to last post
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