GA-40 build

[BasherT]

I have a working GA-40 clone that I have built but I am unsure whether I have used the right Pots!

I take it that I am right and that the Channel 1 and 2 vol vots are 1M log, the tone pot is a 1M log and the trem depth and freq are both 500k log.

I am just not getting very much response from the log pots I have used after about a quarter turn which has made me worry I should be using linear pots.

All help gratefully received.

BasherT

[roughcut studios]

GA-40 build

You should be using audio (log) taper pots for volume and frequency controls, and linear for the depth control.
I love these amps! ....Jon

[BasherT]

Thanks Jon. That is realy helpful and much appreciated.

I have to change the depth control pot then! What about the tone pot? Do you know what taper that has? I can't see from the schematic how you can figure out what taper these pots are supposed to have.

Bashert