Secret Sauce is our take on the classic Harmonic Percolator circuit. It was designed to Steve Albini's Percolator specs but had a unique transistor set and features. Instead of just Germanium and Silicon transistors pair, we've used NOS Soviet Ge 1T320B (1Т320Б, 1T means military version) and Si BC307 (you could select one via toggle switch) + NOS GT404B Ge (ГТ404Б). We added a buffered pickup simulator in front of the circuit to allow the fuzz to be used everywhere in a signal chain without losing its tone. When it comes to diode clipping, you could select Germanium (NOS Soviet D311) or Silicon (BAT85) diodes and choose the compression and clipping symmetry level.
Demo by Mind the G.A.S. (EN)