GuitarPCB releases Industrial Fuzz v7 with onboard potentiometer redesign

March 1, 2023 · 1 sources

GuitarPCB released version 7 of its Industrial Fuzz board in March 2023, according to the maker's build document. The release adds a new onboard potentiometer design, large off-board wiring pads, additional cosmetic upgrades and an incorporated 1N5817 protection diode¹.

The board measures 2.25 by 1.48 inches and carries five controls: Stab, Compression, Volume, Gate and Drive¹. The maker describes Stab as adjusting the stability of the circuit's oscillation, Compression as adjusting the amount of compression, Gate as adjusting the threshold at which the gate kicks in, and Drive as adjusting the amount of gain¹. The parts list specifies B5K potentiometers for Stab and Volume, and B10K for Compression, Drive and Gate¹. The circuit uses a 2N3904 transistor at Q1 and PNP transistors at Q2 and Q3; the maker states the PNP units can be 50 to 150 hFE and that germanium transistors are not mandatory¹.

The maker says the circuit can produce a wide range of fuzz tones, from smooth and creamy to chaotic and splattery, and notes that some settings make the pedal generate squeal noises by itself, particularly with Stab below 2 o'clock, which it calls normal for this circuit¹. A traditional fuzz face-like setting can be obtained by turning Gate and Comp all the way down, Stab all the way up, and Drive to about 2 o'clock, according to the document¹. The board is listed in the fuzz pedals category.

The document gives no price or availability date beyond the March 2023 publication¹.