Fuzz Factory 1590B

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    47u      47UF 50V 105C RADIAL ELECTROLYTIC CAPACITOR 6X11MM
Diodes        
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
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

TRANSISTORS

You can use either germanium (Q2 AC128 Hfe 60-80 and Q3 AC128 Hfe 100-120) or silicon transistors (2N3906). Follow the figures for the correct position of the transistors.

TRANSISTOR SOCKETS

It is recommended to use sockets for the germanium transistors. You can use 3 pin headers (40 PIN DIP SIP IC SOCKETS ADAPTOR SOLDER TYPE).

SCHEMATIC

GENERAL DESCRIPTION OF COMPONENTS

Resistors

Use a multimeter or the color bands to obtain the resistance value. Resistors do not have polarity, you can place them in any direction.

Electrolytic capacitors

Electrolytic capacitors have their value printed on them. The negative polarity pin is indicated by a white strip along the can. They also have a longer leg indicating the positive pin. The maximum voltage rating never can be exceeded, make sure you are using at least double voltage rating than your power supply. For example, if you are using a 9V power supply, use a electrolytic capacitor with at least 18V maximum voltage rating.

Polyester capacitors

Polyester capacitors have their value marked with three numbers. Read as picofarads (pF), the first two are the 1st and 2nd digits and the third is the multiplier code. These capacitors do not have polarity, you can place them in any direction.

Diodes

Diodes have their model printed on them. The polarity (cathode) is indicated by the ring near the side. This ring is also marked on the PCB.

Led diodes

Led diodes have polarity, the cathode is indicated as a flat surface on the side of the diode and also it is the shorter led. On the PCB, the cathode is marked as a flat side and anode as a round side.

Transistors

Transistors are three terminals components and their model is printed on them. To indicate the correct orientation, one side of the transistor is flat and the other one is round.

Potentiometers

Potentiometers have their resistance value marked on them. They are marked with A, B or C for logarithmic, linear and reverse logarithmic, respectively.