Capacitor replacement, pedal project

Discussion in 'The Projects Forum' started by cllvt, Mar 30, 2009.

  1. cllvt

    Thread Starter New Member

    Jan 21, 2005
    4
    0
    Hi,

    I am working on some modifications to a guitar effects pedal. It requires replacing a number of capacitors, some of the polarized electrolytics. Is there any reason that I cannot (assuming size is not a problem) replace these with (non-polarized) poly film caps?

    I searched, and did not find anything that suggested I should not do this, but I am having some problems with the mod and wanted to verify this. If it makes a difference or anyone is interested the schematic is here:

    http://www.godiksennet.com/images/sch/DS1PG2.jpg

    and the specific caps are C2, C5, C8, C9, C14

    Any info appreciated. Thanks,
    Chris
     
  2. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    6,357
    718
    Capacitors in a small physical size over about 2.2uF/50V in value/rating are usually only available as electrolytic or tantalum.

    The polariztion is a (usually undesireable) side effect of electrolytic capacitors, using non-polarized isn't an issue if some part of the design doesn't expect the higher ESR of an electrolytic.
     
  3. cllvt

    Thread Starter New Member

    Jan 21, 2005
    4
    0
    Thanks, I appreciate the quick reply. I did find a shorted capacitor (C10) and replaced that, but still have some problems I guess. Back to the schematics.
    Chris
     
Loading...