This is the Fuzz Face, the legendary fuzz distortion pedal. With this PCB you can build the original or many other variants using either PNP or NPN transistors. You can use a trimmer to easily adjust the bias point and behavior of the circuit. Materials list 1x Fuzz Face DIY PCB 1x 2.2UF 35V 105C RADIAL ELECTROLYTIC CAPACITOR 5X11MM 1x 22UF 50V 105C RADIAL ELECTROLYTIC CAPACITOR 5X11MM 1x 10NF 0.01UF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR 1x 47UF 50V 105C RADIAL ELECTROLYTIC CAPACITOR 6X11MM 1x 100K OHM 1/4W 1% METAL FILM RESISTOR 1x 33K OHM 1/4W 1% METAL FILM RESISTOR 1x 470 OHM 1/4W 1% METAL FILM RESISTOR 1x 1M OHM 1/4W 1% METAL FILM RESISTOR 1x 50K OHM TRIMMER POTENTIOMETER CERMET 1 TURN 3362P 1x 1K OHM LINEAR TAPER POTENTIOMETER 1x 500K OHM LOGARITHMIC TAPER POTENTIOMETER 2x 2N3904 NPN GENERAL PURPOSE TRANSISTOR 1x 40 PIN DIP SIP IC SOCKETS ADAPTOR SOLDER TYPE