Cheers Christian,

Might have to go and buy a capacitance meter then. Ah well. The good thing is that this board is currently disconnected.

In terms of circuit diagram, on the input side the resistor and capacitor are in parallel on the signal line, and on the output side I am beginning to think I was mistaken. Appears that we have a resistor and capacitor in parallel, followed by a resistor in parallel with an inductor. Which makes sense if we are trying to rolloff high and low frequencies I guess.

Might make it more fun to figure out values.

Or I could just dig out another hole in the guitar and keep the daughter board :-)