I have a bass with concentric potentiometers/Dual-gang potentiometers for some combined tone and volume controls. I noticed the other day that, sometimes, when I turn the inner pot it moves the outer pot. Obviously, it would be convenient if this didn't happen. The effect is not uniform along the rotation of the pot.
- Is this to be expected - are dual pots a two-handed operation?
- If not, how do I fix it? I'm not entirely sure if this was already the case (I just started playing with these pots). The only theory I have is that, somehow, the pots picked up some stickiness from some adhesive film nearby. I tried some wd-40 to dissolve this. Would so lighter fluid help? Should I get someone to replace the pots?