Enclosure not stated · 3 knobs

BOSS SD-1 Super Overdrive

From the vendor

BOSS SD-1 Super Overdrive guitar pedal

The schematic image is on the project page. Open it at PCBWay.

Check before you build · 1 value the reader of this schematic was not sure of

Low-resolution 600px image: 18n caps and B20k/B10k pot values read from small text

Ref	Value	Normalized	Type	Notes
Resistors 10
×5	10k	10k		read from the schematic by eye
×3	4k7	4.7k		read from the schematic by eye
×3	33k	33k		read from the schematic by eye
×2	100k	100k		read from the schematic by eye
×1	2M2	2.2M		read from the schematic by eye
×1	470k	470k		read from the schematic by eye
×1	470	470		read from the schematic by eye
×1	22k	22k		read from the schematic by eye
×1	1M	1M		read from the schematic by eye
×1	1k	1k		read from the schematic by eye
Capacitors 7
×3	47n	47n		read from the schematic by eye
×2	18n	18n		read from the schematic by eye
×2	1u	1u		read from the schematic by eye
×1	27n	27n		read from the schematic by eye
×1	10n	10n		read from the schematic by eye
×1	100u	100u		read from the schematic by eye
×1	47u	47u		read from the schematic by eye
Diodes 2
×3	1N916	1N916		asymmetric clipping; read from the schematic by eye
×1	1N4001	1N4001		read from the schematic by eye
Transistors 1
×2	2SC732	2SC732		read from the schematic by eye
ICs 1
×1	4558	4558		dual op-amp, both sections used; read from the schematic by eye
Potentiometers 3
Drive	B1M	B1M	Potentiometer	read from the schematic by eye
Tone	B20k	B20k	Potentiometer	read from the schematic by eye
Volume	B10k	B10k	Potentiometer	read from the schematic by eye