Reviving this for a moment: After reading some other threads about long leads to pots I'm going to try and shorten them. This PCB is a wacky experiment where I am cramming 3 pedals into one enclosure and I have like 3" wires per pot.
I finished a build for the pot version of the 6-band EQ circuit. It has a major squealing issue when any of the pots are past mid-way. If I turn down all the pots I can turn an individual pot higher than mid-way without the same amount of squealing although all the way up it'll squeal.
Any...