Linear to Log pot convertion for fet emulator tone stack

[ubaid88]

i have recently build a Dr Boogey.

But i can't find log pots locally. So i used that resistor trick for simulation of the log pot from linear. I have no problem for gain and master volume. But i cannot understand for tonestack. Please guide me for me this, that how can i convert tonestack from linear to log.

[Joe]

The linear pots will work fine, at the expense of a smaller usable range on the bass control.

[petemoore]

  You'll start losing range of control if you reduce the pot value while tapering.
  I think having the right values for the circuit [otherwise] and a range bunched up at one end of the shaft travel is preferrable.
  I've done some log/lin...use what I have here's recently on TMB control circuits, a little bunchy, but works just fine.