Enclosure not stated

BOSS OD-1

Based on the Boss OD-1· 10 other boards clone it

Schematic

Ref	Value	Normalized	Type	Notes
Resistors 7
×3	1K	1k		input series, first-stage output, second-stage feedback; read from the schematic by eye
×4	10K	10k		two Vref divider, pin 5 to Vref, output series; read from the schematic by eye
×1	2.2M	2.2M		input pulldown; read from the schematic by eye
×1	510K	510k		pin 3 bias; read from the schematic by eye
×1	4.7K	4.7k		drive leg; read from the schematic by eye
×1	51K	51k		drive feedback; read from the schematic by eye
×1	220	220		to 20KB wiper; read from the schematic by eye
Capacitors 6
×2	47pF	47p		input filter, feedback; read from the schematic by eye
×1	.1uF	100n		input coupling; read from the schematic by eye
×1	473	47n		47nF, drive leg to ground; read from the schematic by eye
×2	.22uF	220n		drawn .22; read from the schematic by eye
×1	10uF	10u		Vref filter; read from the schematic by eye
×1	1uF	1u		output coupling; read from the schematic by eye
Diodes 1
×3	Diode	DIODE		no part number given; two in series one way, one the other way in the feedback; read from the schematic by eye
ICs 1
×1	JRC4558	JRC4558		dual op amp; read from the schematic by eye
Potentiometers 3
Over Drive	A500K	A500k	Potentiometer	drawn 500KA; read from the schematic by eye
×1	B20K	B20k	Potentiometer	drawn 20KB, unnamed, sets second-stage gain; likely an internal trim; read from the schematic by eye
×1	B100K	B100k	Potentiometer	drawn 100KB, unnamed output volume (Level); read from the schematic by eye