Fuzz Factory
The Fuzz Factory is an iconic five-knob fuzz pedal with a huge range of sound possibilities. This classic DIY pedal project can be built using either germanium or silicon transistors.Steps
Categories
Status: Active
Designators and components Step 2 of 5
COMPONENT LIST
PCB
PCB FUZZ FACTORY 1590BB DIY PCB GUITAR EFFECT
Capacitors
C1 10u 10UF 25V 105C RADIAL ELECTROLYTIC CAPACITOR 5X11MM
C2 100n 100NF 0.1UF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C3 10u 10UF 25V 105C RADIAL ELECTROLYTIC CAPACITOR 5X11MM
C4 10u 10UF 25V 105C RADIAL ELECTROLYTIC CAPACITOR 5X11MM
C5 100u 100UF 35V ELECTROLYTIC CAPACITOR 6X11MM
Diodes
LED LED 3MM GREEN (Optional)
D1 1N4001 1N4001 DIODE 1A 50V
Transistors
Q1 2N3904 2N3904 NPN GENERAL PURPOSE TRANSISTOR
Q2 2N3906 2N3906 PNP GENERAL PURPOSE TRANSISTOR
Q3 2N3906 2N3906 PNP GENERAL PURPOSE TRANSISTOR
Q2/Q3 Socket 40 PIN 2.54MM DIP SIP IC SOCKETS ADAPTOR SOLDER TYPE
Resistors
R1 220k 220K OHM 1/4W 1% METAL FILM RESISTOR
R2 10k 10K OHM 1/4W 1% METAL FILM RESISTOR
R3 470 470 OHM 1/4W 1% METAL FILM RESISTOR
R4 47k 47K OHM 1/4W 1% METAL FILM RESISTOR
R5 5.1k 5.1K OHM 1/4W 1% METAL FILM RESISTOR
R6 220k 220K OHM 1/4W 1% METAL FILM RESISTOR
R7 1M 1M OHM 1/4W 1% METAL FILM RESISTOR
R8 3.3k 3.3K OHM 1/4W 1% METAL FILM RESISTOR (Optional, only for LED)
Potentiometers
STAB 5k-B 5K OHM LINEAR TAPER POTENTIOMETER
VOL 5k-B 5K OHM LINEAR TAPER POTENTIOMETER
COMP 10k-B 10K OHM LINEAR TAPER POTENTIOMETER
DRIVE 10k-B 10K OHM LINEAR TAPER POTENTIOMETER
GATE 10k-B 10K OHM LINEAR TAPER POTENTIOMETER
PCB
SCHEMATIC
TRANSISTORS
You can build this pedal using either germanium or silicon transistors. Refer to the figures below for the correct orientation of the transistors.
Germanium transistors: Q2 AC128 (Hfe 60-80) - Q3 AC128 (Hfe 100-120)
Silicon transistors: 2N3906
