Muroidea Distortion

Based on the ProCo Rat· 7 other boards clone it

From the vendor

Controls

• Volume – Controls the output volume

• Filter – Controls the amount of high frequency contour

• Distortion – Controls the amount of distortion

Specifications

• Designed for a 125B enclosure with top-mounted jacks

The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Ref	Value	Normalized	Type	Notes
Resistors 12
R1	1M	1M	Resistor, 1/4W
R2	1M	1M	Resistor, 1/4W
R3	560R	560	Resistor, 1/4W
R4	1K	1k	Resistor, 1/4W
R5	47R	47	Resistor, 1/4W
R6	1K	1k	Resistor, 1/4W
R7	1K5	1.5k	Resistor, 1/4W
R8	1M	1M	Resistor, 1/4W
R9	10K	10k	Resistor, 1/4W
R10	4K7	4.7k	Resistor, 1/4W
R11	100K	100k	Resistor, 1/4W
R12	100K	100k	Resistor, 1/4W
Capacitors 12
C1	22n	22n	Film capacitor, 7.2 x 2.5mm
C2	4u7	4.7u	Electrolytic capacitor, 5mm
C3	2u2	2.2u	Electrolytic capacitor, 5mm
C4	1n	1n	Film capacitor, 7.2 x 2.5mm
C5	100p	100p	Ceramic capacitor
C6	30p	30p	Ceramic capacitor
C7	4u7	4.7u	Electrolytic capacitor, 5mm
C8	3n3	3.3n	Film capacitor, 7.2 x 2.5mm
C9	22n	22n	Film capacitor, 7.2 x 2.5mm
C10	1u	1u	Electrolytic capacitor, 5mm
C11	100u	100u	Electrolytic capacitor, 5mm
C12	1u	1u	Electrolytic capacitor, 5mm
Diodes 3
D1	1N914	1N914	Signal diode, DO-35
D2	1N914	1N914	Signal diode, DO-35
D3	1N5817	1N5817	Schottky diode, DO-41
Transistors 1
Q1	2N5458	2N5458	JFET transistor, N-channel
ICs 1
IC1	LM308	LM308	Single op-amp, DIP8
Potentiometers 3
VOLUME	A100K	A100k	16mm right-angle PCB mount pot	100K, Logarithmic Taper (A)
FILTER	A100K	A100k	16mm right-angle PCB mount pot	100K, Logarithmic Taper (A)
DIST	A100K	A100k	16mm right-angle PCB mount pot	100K, Logarithmic Taper (A)