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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: Read this before posting.

    Started by pranam77, 21st August 2009 09:14
    • Replies: 0
    • Views: 25,493
    21st August 2009, 09:14 Go to last post
    • Replies: 1
    • Views: 77
    Yesterday, 18:04 Go to last post
  1. [moved] Video transmitter for TV

    Started by bodzio_stawski, 12th November 2019 19:11
    • Replies: 1
    • Views: 119
    12th November 2019, 20:31 Go to last post
  2. Help to build my auto disconnecting circuit.

    Started by mariah1902, 10th November 2019 18:33
    • Replies: 10
    • Views: 362
    12th November 2019, 10:26 Go to last post
  3. Advice please making PCBs using Press n Peel film

    Started by ljcox, 5th November 2019 04:13
    • Replies: 6
    • Views: 524
    10th November 2019, 21:34 Go to last post
  4. Symmetric Source + 10V and -10V - help me !!

    Started by enfotec, 6th November 2019 01:15
    • Replies: 4
    • Views: 426
    8th November 2019, 07:19 Go to last post
  5. Small Project archery aiming assist

    Started by dalep, 6th November 2019 17:59
    • Replies: 3
    • Views: 269
    7th November 2019, 22:08 Go to last post
  6. Automatic light control circuit (On-Off)

    Started by sareehy, 30th October 2019 18:48
    • Replies: 11
    • Views: 715
    6th November 2019, 21:00 Go to last post
  7. [SOLVED] Protect FPGA Pin from negative voltage

    Started by clros, 1st November 2019 11:37
    • Replies: 18
    • Views: 569
    5th November 2019, 08:50 Go to last post
    • Replies: 2
    • Views: 265
    4th November 2019, 01:59 Go to last post
  8. PCB Christmas tree Ornaments

    Started by hobbyProgrammer, 29th October 2019 16:40
    • Replies: 1
    • Views: 268
    29th October 2019, 17:08 Go to last post
  9. PC based Oscilloscopes

    Started by electronicsman, 30th June 2019 12:31
    • Replies: 11
    • Views: 959
    29th October 2019, 13:47 Go to last post
    • Replies: 3
    • Views: 242
    28th October 2019, 22:48 Go to last post
  10. [WILL IT WORK?] Custom ATMEGA2560

    Started by mdo131, 28th October 2019 18:17
    • Replies: 1
    • Views: 162
    28th October 2019, 19:11 Go to last post
  11. L293d - Input Voltage (motor operation)

    Started by utsavp1417, 15th October 2019 23:15
    • Replies: 3
    • Views: 1,039
    16th October 2019, 22:34 Go to last post
    • Replies: 7
    • Views: 678
    14th October 2019, 07:09 Go to last post
  12. Instrumentation AMP Virtual short.

    Started by mrblueblue1234, 9th October 2019 17:41
    • Replies: 5
    • Views: 891
    10th October 2019, 00:46 Go to last post
  13. Impedance Calculation

    Started by mrblueblue1234, 9th October 2019 01:09
    • Replies: 5
    • Views: 634
    9th October 2019, 22:48 Go to last post
  14. "Self-Healing" 12V 30A Circuit

    Started by Nabors, 2nd October 2019 00:37
    • Replies: 6
    • Views: 1,162
    3rd October 2019, 11:29 Go to last post
  15. SD card - pull-ups required?

    Started by gmorfeus, 1st October 2019 10:16
    • Replies: 6
    • Views: 558
    3rd October 2019, 09:29 Go to last post
  16. Current Measure using Current Transducer

    Started by adimon, 27th September 2019 19:11
    • Replies: 2
    • Views: 354
    28th September 2019, 01:55 Go to last post
  17. problem with pcb etching

    Started by ArakelTheDragon, 25th September 2019 06:53
    • Replies: 16
    • Views: 968
    27th September 2019, 23:49 Go to last post
  18. li-ion voltage reducer to 3volt - help needed

    Started by Javid.zare.s, 15th September 2019 01:20
    • Replies: 8
    • Views: 892
    27th September 2019, 09:32 Go to last post
  19. Another question about Holtek HT12E/HT12D pair

    Started by Mapuia, 27th September 2019 08:57
    • Replies: 0
    • Views: 179
    27th September 2019, 08:57 Go to last post
  20. Change colors of liquid crystal display

    Started by RevDNS, 9th September 2019 08:51
    • Replies: 7
    • Views: 963
    23rd September 2019, 23:14 Go to last post
  21. Portable headphone amp w. batteries

    Started by mikaelmark, 21st September 2019 14:13
    • Replies: 14
    • Views: 1,111
    23rd September 2019, 06:07 Go to last post
  22. Li-ion Battery charger need help

    Started by maxim10373, 16th September 2019 06:15
    • Replies: 4
    • Views: 522
    16th September 2019, 08:48 Go to last post
  23. Operating four Tx-Rx pairs in close proximity

    Started by Mapuia, 12th September 2019 16:43
    • Replies: 7
    • Views: 633
    12th September 2019, 20:58 Go to last post
    • Replies: 0
    • Views: 324
    11th September 2019, 18:43 Go to last post
  24. Testing LI Batteries with the help of a device

    Started by Prem Arjun, 10th September 2019 17:15
    • Replies: 2
    • Views: 369
    11th September 2019, 03:08 Go to last post
  25. H bridge with IR2110

    Started by maimahmoud93, 10th September 2019 12:11
    • Replies: 3
    • Views: 448
    11th September 2019, 01:21 Go to last post