The controls on my bass guitar make horrid scratchy noises when you adjust them. I have sprayed them with switch-cleaner, and they go quiet for a few months, but gradually the 'orible noise comes back. So, I think it is time to change them. But what type are they?
While everything was disconnected, it gave me a chance to measure the d.c. resistance of the pickups - 12 kilo-ohms.
It seems a bit strange to have a linear pot for volume, but the adjustment seems smooth and progressive, so no reason to change it.
The overall circuit looks like this:
I should have enough info to get some replacement controls now. I see CPC sell some with conductive plastic tracks - they might be a quieter alternative to the old-fashioned carbon track.
Order codes RE06797 and RE06795, and quite cheap too.