God City Instruments Uno Fuzz

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.