Just finished building this. The pot tapers are not mentioned in the schematic, so i went with the usual tapers from most designs. However. Volume needs to be linear and drive reverse log to get the circuit act like the original unit. Other thing was the 470R resistor on the bottom left. 470R gave me lots of oscillation when gain was cranked, so i swapped that to 4K7, which fixed the problem. I do believe that's an error in the schematic i did this from, but i can't be certain. Anyway - it works like a charm and is very nice OD indeed. Fat and smooth.
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