Enclosure not stated · 3 knobs

OK Doomer

Based on the Audio Surplus Effects OK Doomer· 5 other boards clone it

Schematic

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

Ref	Value	Normalized	Type	Notes
Resistors 13
×4	100k	100k		read from the schematic by eye
×3	15k	15k		read from the schematic by eye
×3	470k	470k		read from the schematic by eye
×2	7k5	7.5k		read from the schematic by eye
×2	100	100		read from the schematic by eye
×1	1M	1M		read from the schematic by eye
×1	1k5	1.5k		read from the schematic by eye
×1	390	390		read from the schematic by eye
×1	430k	430k		read from the schematic by eye
×1	10k	10k		read from the schematic by eye
×1	1k	1k		read from the schematic by eye
×1	2k2	2.2k		read from the schematic by eye
×1	4k7	4.7k		LED resistor; read from the schematic by eye
Capacitors 8
×2	820n	820n		read from the schematic by eye
×2	470p	470p		read from the schematic by eye
×2	82n	82n		read from the schematic by eye
×1	68n	68n		read from the schematic by eye
×1	3n3	3.3n		read from the schematic by eye
×1	47n	47n		read from the schematic by eye
×1	100u	100u		electrolytic; read from the schematic by eye
×1	100n	100n		read from the schematic by eye
Diodes 1
×1	1N5817	1N5817		reverse-polarity protection; read from the schematic by eye
Transistors 1
×4	MPSA18	MPSA18		read from the schematic by eye
Potentiometers 3
Input	B1M	B1M	Potentiometer	wired as variable resistor; read from the schematic by eye
Filter	B10k	B10k	Potentiometer	read from the schematic by eye
Volume	B100k	B100k	Potentiometer	read from the schematic by eye