Chop Shop Overdrive

Based on the Fairfield Circuitry Barbershop· 6 other boards clone it

From the vendor

Controls

• Volume

• Sag

• Drive

• Tone (Toggle switch)

Details

• 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 13
R1	2M	2M	Resistor, 1/4W
R2	33K	33k	Resistor, 1/4W
R3	2M	2M	Resistor, 1/4W
R4	1K	1k	Resistor, 1/4W
R5	10K	10k	Resistor, 1/4W
R6	5K1	5.1k	Resistor, 1/4W
R7	1K	1k	Resistor, 1/4W
R8	1K	1k	Resistor, 1/4W
R9	330K	330k	Resistor, 1/4W
R10	1M	1M	Resistor, 1/4W
R11	330K	330k	Resistor, 1/4W
R100	47R	47	Resistor, 1/4W
CLR	4K7	4.7k	Resistor, 1/4W	* LED current limiting resistor
Capacitors 11
C1	10n	10n	Film capacitor, 7.2 x 2.5mm
C2	100p	100p	Ceramic capacitor
C3	22u	22u	Electrolytic capacitor, 5mm
C4	100n	100n	Film capacitor, 7.2 x 2.5mm
C5	22u	22u	Electrolytic capacitor, 5mm
C6	1u	1u	Film capacitor, 7.2 x 5.0mm
C7	1u	1u	Film capacitor, 7.2 x 5.0mm
C8	47n	47n	Film capacitor, 7.2 x 2.5mm
C9	10n	10n	Film capacitor, 7.2 x 2.5mm
C10	1u	1u	Film capacitor, 7.2 x 5.0mm
C100	100u	100u	Electrolytic capacitor, 5mm
Diodes 1
D100	1N5817	1N5817	Schottky diode, DO-41
Transistors 3
Q1	J201	J201	JFET transistor, N-channel
Q2	J201	J201	JFET transistor, N-channel
Q3	PN2222A	PN2222A	BJT transistor, NPN TO-92
Potentiometers 3
VOLUME	A100K	A100k	16mm right-angle PCB mount pot
SAG	B10K	B10k	16mm right-angle PCB mount pot
DRIVE	A100K	A100k	16mm right-angle PCB mount pot
Trimmers 2
BIAS1	50K	50k	Trimmer potentiometer, 3362P type
BIAS2	50K	50k	Trimmer potentiometer, 3362P type
Switches 1
TONE	ON/OFF/ON	ON/OFF/ON	Toggle switch, SPDT	3-position (ON/OFF/ON)