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Volume pot problem

Posted by Eric Kasten on July 10, 2014 at 6:29pm in Building Secrets, Tips, Advice, Discussion

I soldered up 2 "Little Gem" 1 watt amps and both have strange volume pots...  I used all the components required and followed schematics exactly... I've made these before.  This time the volume works fine at full volume, but when I turn it down a little it drops off fast and is completely gone after about 1/8 turn.  What gives?  I cannot figure it out.

http://www.instructables.com/id/The-Little-Gem-Mini-Amplifier-Guitar-Amp-/

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Replies

  • Eric Kasten July 11, 2014 at 7:49am

    How much difference is there between a 5KA, 25KA, 100KA...???

  • mojoatomic July 10, 2014 at 7:08pm
    Are they linear or audio taper? I'll bet they're linear if there's a sudden drop off.
    • Eric Kasten > mojoatomic July 10, 2014 at 8:10pm

      I must have ordered the audio taper ones previously....

      • mojoatomic > Eric Kasten July 10, 2014 at 8:45pm
        Linear for tone, gain, presence, ect, and audio taper for volume.
    • Eric Kasten > mojoatomic July 10, 2014 at 8:10pm

      LInear... I think I ordered linear because the gain was linear... I need to get audio don't I...?

      5K Linear Gain POT
      25 Ohm POT (Volume) - [this is optional]

This reply was deleted.