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Threads 1501 to 1530 of 11064

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. Closed: Relay circuit problem!

    Started by roineust, 8th August 2014 11:32
    • Replies: 5
    • Views: 1,086
    8th August 2014, 13:47 Go to last post
    • Replies: 4
    • Views: 1,145
    7th August 2014, 16:22 Go to last post
  2. Closed: How to use HT12E Encoder IC for IR transmitter for RC control

    Started by bharathjojo, 6th August 2014 19:48
    • Replies: 2
    • Views: 2,169
    7th August 2014, 04:54 Go to last post
  3. Closed: Help for soccer substitution board circuit

    Started by zawminoo, 5th August 2014 00:03
    • Replies: 5
    • Views: 2,815
    6th August 2014, 21:30 Go to last post
  4. Closed: Cost Analysis of PEM FUEL CELL is required.....

    Started by mfahadsheikh, 5th August 2014 18:20
    • Replies: 0
    • Views: 527
    5th August 2014, 18:20 Go to last post
    • Replies: 5
    • Views: 1,092
    5th August 2014, 15:18 Go to last post
  5. Closed: output voltage of a full wave bridge rectifier

    Started by Kick, 5th August 2014 07:33
    • Replies: 2
    • Views: 1,539
    5th August 2014, 10:15 Go to last post
  6. [SOLVED]Closed: ferrite core and ferrite transformer design in bangalore

    Started by phobos1, 15th December 2013 14:35
    • Replies: 3
    • Views: 2,172
    5th August 2014, 04:42 Go to last post
    • Replies: 0
    • Views: 500
    4th August 2014, 14:51 Go to last post
  7. Closed: Algorithm for pcm signals

    Started by N.nazmi, 4th August 2014 13:04
    • Replies: 0
    • Views: 721
    4th August 2014, 13:04 Go to last post
  8. [SOLVED]Closed: IR receptor doesn't work when MAX232 is connected to VCC

    Started by AveztruZ, 3rd August 2014 04:15
    • Replies: 6
    • Views: 1,160
    4th August 2014, 07:55 Go to last post
  9. Closed: Trouble with Vinotemp RH\temp project - how to take control

    Started by DistrictJP, 1st March 2014 21:34
    • Replies: 5
    • Views: 1,446
    3rd August 2014, 23:37 Go to last post
  10. [SOLVED]Closed: ESR capacitor meter circuits

    Started by pgr2002, 27th July 2014 15:15
    • Replies: 13
    • Views: 4,022
    3rd August 2014, 10:19 Go to last post
  11. Closed: Output of LM317 is gradually decreasing

    Started by rajaram04, 25th June 2014 23:29
    • Replies: 17
    • Views: 1,906
    3rd August 2014, 02:40 Go to last post
  12. Closed: Programmer PRO-201 HI-Lo Systems

    Started by john120, 28th January 2013 17:53
    • Replies: 1
    • Views: 1,402
    2nd August 2014, 19:54 Go to last post
  13. [SOLVED]Closed: 555 timer delay on circuit

    Started by NikicaJEa, 1st August 2014 20:03
    • Replies: 4
    • Views: 1,536
    1st August 2014, 21:11 Go to last post
  14. [SOLVED]Closed: Esr meter circuit by jan klubert

    Started by pgr2002, 31st July 2014 09:37
    • Replies: 3
    • Views: 1,097
    1st August 2014, 05:13 Go to last post
  15. Closed: Potentiometer are not drivng Nylon wire

    Started by Ghosh Debalina, 29th July 2014 22:14
    • Replies: 5
    • Views: 1,117
    31st July 2014, 08:20 Go to last post
  16. Closed: BPF / noise attenuator for TA7642 - improved design

    Started by andreidaniel, 29th July 2014 23:16
    • Replies: 0
    • Views: 1,574
    29th July 2014, 23:16 Go to last post
  17. Closed: Rfid unmanned project

    Started by Srajan Naik, 27th July 2014 09:02
    • Replies: 0
    • Views: 612
    27th July 2014, 09:02 Go to last post
  18. Closed: LNA design check. Not not straight RF tracks. Design mistakes.

    Started by w1ne, 11th July 2014 23:41
    • Replies: 2
    • Views: 886
    27th July 2014, 08:37 Go to last post
  19. Closed: small size smd op-amp

    Started by Kick, 14th July 2014 06:45
    • Replies: 3
    • Views: 960
    27th July 2014, 08:26 Go to last post
  20. Closed: P type Mosfet as a switch for power supply

    Started by robotboy, 25th July 2014 23:38
    • Replies: 1
    • Views: 791
    26th July 2014, 00:30 Go to last post
  21. [SOLVED]Closed: Help to build a working model of ESR meter

    Started by pgr2002, 13th June 2014 07:06
    • Replies: 15
    • Views: 3,149
    25th July 2014, 19:21 Go to last post
  22. [SOLVED]Closed: Esr meter by bob parker

    Started by pgr2002, 19th June 2014 17:36
    • Replies: 5
    • Views: 5,168
    25th July 2014, 18:35 Go to last post
  23. [SOLVED]Closed: Esr meter (in different language)

    Started by pgr2002, 1st July 2014 08:13
    • Replies: 3
    • Views: 1,288
    25th July 2014, 18:33 Go to last post
  24. Closed: tsop 1738 ouptut connected to microcontroller

    Started by Disha Karnataki, 23rd July 2014 11:04
    • Replies: 7
    • Views: 2,003
    24th July 2014, 12:48 Go to last post
  25. [SOLVED]Closed: ESR meter using 555 timer IC

    Started by pgr2002, 19th July 2014 16:55
    2 Pages
    1 2
    • Replies: 24
    • Views: 5,595
    24th July 2014, 03:29 Go to last post
  26. Closed: Ultrasonic transducers.

    Started by solofrain, 6th June 2014 22:21
    2 Pages
    1 2
    • Replies: 20
    • Views: 3,412
    22nd July 2014, 16:29 Go to last post
  27. [SOLVED]Closed: New circuit with timer ic 555

    Started by pgr2002, 22nd July 2014 11:45
    • Replies: 2
    • Views: 746
    22nd July 2014, 13:09 Go to last post