Lm386 Audio amplfier help

Discussion in 'General Electronics Chat' started by tramont, Jan 27, 2014.

  1. tramont

    Thread Starter New Member

    Oct 23, 2012
    So im trying to build a lm386 amp circuit the only prob im having is the darn thing wont output any sound. The one time I got it to output anything it was pretty low. I have tried 2 new lm386, new wires, and breadboard still nothing. Can you take a look at it and give me some suggestions? Also I was usingna 8 ohm speaker at first then it messed up also what ohm speakers are able to be used? Heres my amp https://www.youtube.com/watch?v=5ec5aKA-XBc&feature=youtube_gdata_player
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    I think you need to change somethings

    First is tht this chip can use single ended supply. With ±9V you are at it's limit.
    You might wanna use just 0 - 9V only. No negative rail as per the data I believe.

    Check the data sheet attached.

    PS. I would built one from the data sheet first and then make changes.
  3. tracecom

    AAC Fanatic!

    Apr 16, 2010