This is another old school fuzz designed especially for you bass players. This is a “messy” bass fuzz for fat stoner rock and psychedelic.
The circuit is based on the classic 2 transistor Shen-ei fuzz below (Fuzzilla) using old stock C945 transistors. This is a GREAT fuzz for both guitar and bass in it’s standard late 60's form but I’ve added more output gain and bass response to cut the bass through even more. The tone control takes some tops out to give an even fatter, muddier sludge bass tone. If you want a nice bass overdrive, this ain’t your pedal.
Different versions of this circuit have been used by bass players in JAMC and Cosmic Psychos, among others.