Close Second Distortion

Based on the Colombo Audio Electronics The One· 1 other board clones it

Category: Fuzz· OD / Distortion / Fuzz
Controls: Volume · Gain · Mid · Tone
Price: $12.00in stock

Buy the PCB at PedalPCB Build document8/22/26

From the vendor

Controls

• Volume

• Gain

• Mid

• Tone

• Channel (Toggle switch)

Details

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

Schematic

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.

Parts list 46 rows

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Ref	Value	Normalized	Type	Notes
Resistors 19
R1	1M	1M	Resistor, 1/4W
R2	1K	1k	Resistor, 1/4W
R3	1M	1M	Resistor, 1/4W
R4	1K	1k	Resistor, 1/4W
R5	10K	10k	Resistor, 1/4W
R6	1M	1M	Resistor, 1/4W
R7	470R	470	Resistor, 1/4W
R8	82K	82k	Resistor, 1/4W
R9	47K	47k	Resistor, 1/4W
R10	10K	10k	Resistor, 1/4W
R11	10K	10k	Resistor, 1/4W
R12	220K	220k	Resistor, 1/4W
R13	220K	220k	Resistor, 1/4W
R14	15K	15k	Resistor, 1/4W
R15	560R	560	Resistor, 1/4W
R16	22K	22k	Resistor, 1/4W
R100	33K	33k	Resistor, 1/4W
R101	33K	33k	Resistor, 1/4W
CLR	4K7	4.7k	Resistor, 1/4W	* LED current limiting resistor
Capacitors 17
C1	22n	22n	Film capacitor, 7.2 x 2.5mm
C2	1n	1n	Film capacitor, 7.2 x 2.5mm
C3	220n	220n	Film capacitor, 7.2 x 5.0mm
C4	100p	100p	Ceramic capacitor
C5	100n	100n	Film capacitor, 7.2 x 2.5mm
C6	100p	100p	Ceramic capacitor
C7	2u2	2.2u	Electrolytic capacitor, 5mm
C8	1u	1u	Film capacitor, 7.2 x 5.0mm
C9	10n	10n	Film capacitor, 7.2 x 2.5mm
C10	10n	10n	Film capacitor, 7.2 x 2.5mm
C11	47n	47n	Film capacitor, 7.2 x 2.5mm
C12	6n8	6.8n	Film capacitor, 7.2 x 2.5mm
C13	4n7	4.7n	Film capacitor, 7.2 x 2.5mm
C14	4n7	4.7n	Film capacitor, 7.2 x 2.5mm
C15	1u	1u	Film capacitor, 7.2 x 5.0mm
C100	100u	100u	Electrolytic capacitor, 5mm
C101	100u	100u	Electrolytic capacitor, 5mm
Diodes 1
D100	1N5817	1N5817	Schottky diode, DO-41
Transistors 1
Q1	J201	J201	JFET transistor, N-channel
ICs 1
IC1	RC4558	RC4558	Dual op-amp, DIP8
Potentiometers 4
VOLUME	A100K	A100k	16mm right-angle PCB mount pot
GAIN	B100K	B100k	16mm right-angle PCB mount pot
MID	A50K	A50k	16mm right-angle PCB mount pot
TONE	B100K	B100k	16mm right-angle PCB mount pot
Switches 1
CHANNEL	ON/ON	ON/ON	Toggle switch, SPDT	2-position (ON/ON)
LEDs 2
LED1	RED	RED	5mm Red LED, Clear
LED2	RED	RED	5mm Red LED, Clear

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