Purpose of capacitors in effects loop pedal

Discussion in 'Pedals' started by USMC 0369, Feb 11, 2019.

  1. USMC 0369

    USMC 0369 Member

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    42B10222-1C29-4152-B389-E8044C82080F.png Bought one of the cheap Chinese loop pedals. Can anyone explain what the capacitors do in this circuit? Sorry for the crappy cell phone screen shot. The pedal did not come with any instructions.
     
  2. Frogfur

    Frogfur Senior Member

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    Senper Fi Marine.
     
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  3. freefrog

    freefrog Senior Member

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    These are 100nF caps in series with the hot wire so they act as high pass filters cutting only the lowest bass frequencies . Looks like an attempt to tame the hum, to me...
     
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  4. USMC 0369

    USMC 0369 Member

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    Thanks, I’ll probably pull them out then.
     

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