RCA-4 Bass wiring

[JimC]

JimC,
I agree with you, for what little I know about wiring. I'm clueless on what pots to use with this configuration.
All I understand is a 250K pot will give more treble, high end, where as a 500K pot will be more midrange/bass.
Given my choice of pickups, and their positions, would there be a proven choice of pot values, along with your question, the cap values?

@Simon Barden knows about twenty times more about this stuff than me. I can read a circuit diagram and work something out, but the subtleties are beyond me. I have a feeling its the other way round, that 250K pots give less high end, so are a better match with single coils, whereas humbuckers need all the treble they can get. Bearing in mind three volume pots anyway I'd be inclined to use 500s on all three, and reverse the in and out wires on the individual volume pots so its more like a jazz bass. But I claim no expertise.

Tone circuits are not my thing at all. If you twisted my arm I'd note that AIUI JBs have a ~.047 cap on the tone control, and Gibsons a ~.022, so maybe it would be worth having the two different values, and I'd use 500 pots but almost anyone would be a better guide than me.