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Old 26th February 2016
  #7
Gear Nut
 
Lasermonkey's Avatar
 

Sounds like the LFO isn't working. Check any capacitors around the LFO op-amp (IC2), especially the tantalum cap (older ones are notorious for going either s/c or o/c).
Whenever I have had LFO issues with modulation pedals, it has always been related to the capacitors.

Hope this helps,
Mark.