This active control circuit by Andy Fuchs is designed to be installed in a volume pedal to overcome treble bleed/tone loss as the pedal reaches the last part of upper end of travel. It is based on Fuchs Audio Technology's Pure Gain effects box.
I'd read somewhere awhile ago that Andy allegedly had set this circuit up in Larry Carlton's Sho-Bud volume pedal. I had a bunch of S/B pedals laying around that I planned to clean up and modify with this circuit, but never got around to tackling the project. I contacted Andy at the time about this circuit and purchased five sets of these circuit components from him that I am now offering for sale. Included will be a photocopy of the circuit diagram shown in the pics that he sketched for me.
Each set includes the following:
• (1) active control circuit schematic
• (1) main control circuit board/pot w/leads (Pure Gain board)
• (1) 9V battery connector
• (1) 9V battery mounting bracket
• (3) 2k resistors
• (1) 1/4" input jack (power ring)
• (1) DC jack
• (1) LED "power on/off light
Price is $30 for each set shipped. I paid $60/set. PayPal or money order. PM me for my PayPal address for online payment, or my mailing address for a money order.