i was thinking . no one really liked my idea of using the pots on the cathode ends of the tubes... to control gain and such,, too noisy.. well what about this. i am currently working on this.. what about a heavy duty LDR and using a modded expression pedal with a dual pot to controll the clean distorted blend. as i bring down the resistance of the first tubes cathode i raise the resistance at the final stage before the power amp section.
as i raise the cathode i lower the resistance in between stages.. just a thought.. of course this could still be done on the amp via a dual pot, and using the same led ldr but i thoguht it would be interesting to do it with an expression pedal also.