There is two layouts of this one, one stock with one control. Since it begs for modifications I added a second layout with four pots for more control:
- 100K resistor at the output is replaced with a 100k volume control.
- 33k/68k before Q2 is part of a fixed Big Muff style tonestack so they are replaced by a tone control.
- The tonestack itself has a very deep and quite narrow mid scoop so a Shape pot is added to blend in some more mids via 27nF cap.
Stock layout
…and four knob layout.
