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BOSS OC-2

Based on the Boss OC-2· 2 other boards clone it

Category: Vibrato / Chorus· Vibrato and Pitch Shift
Price: see vendor
Tags: Vibrato and Pitch Shift

Open the schematic at Experimentalists Anonymous

Schematic

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Parts list 103 rows

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Check before you build · 2 values the reader of this schematic was not sure of

S2: drawn as a simple switch with no type given; SPST assumed (may be momentary)
R8/R44/R53: pots have no control names on the drawing; functions inferred from the circuit

Ref	Value	Normalized	Type	Notes
Resistors 54
R1	1M	1M		read from the schematic by eye
R2	10K	10k		read from the schematic by eye
R3	4k7	4.7k		read from the schematic by eye
R4	5k6	5.6k		read from the schematic by eye
R5	10K	10k		read from the schematic by eye
R6	2K7	2.7k		read from the schematic by eye
R7	10K	10k		read from the schematic by eye
R9	22K	22k		read from the schematic by eye
R10	100K	100k		read from the schematic by eye
R11	330K	330k		read from the schematic by eye
R12	330K	330k		read from the schematic by eye
R13	1M	1M		read from the schematic by eye
R14	1M	1M		read from the schematic by eye
R15	100K	100k		read from the schematic by eye
R16	33K	33k		read from the schematic by eye
R17	1M	1M		read from the schematic by eye
R18	1M	1M		read from the schematic by eye
R19	47K	47k		read from the schematic by eye
R20	33K	33k		read from the schematic by eye
R21	68k	68k		read from the schematic by eye
R22	47K	47k		read from the schematic by eye
R23	100K	100k		read from the schematic by eye
R24	10k	10k		read from the schematic by eye
R25	1M	1M		read from the schematic by eye
R26	100R	100		read from the schematic by eye
R27	10k	10k		read from the schematic by eye
R28	47K	47k		read from the schematic by eye
R29	27K	27k		read from the schematic by eye
R30	47K	47k		read from the schematic by eye
R31	22K	22k		read from the schematic by eye
R32	1K	1k		read from the schematic by eye
R33	10K	10k		read from the schematic by eye
R34	1K	1k		read from the schematic by eye
R35	1K	1k		read from the schematic by eye
R36	27K	27k		read from the schematic by eye
R37	330K	330k		read from the schematic by eye
R38	22K	22k		read from the schematic by eye
R39	330K	330k		read from the schematic by eye
R40	330K	330k		read from the schematic by eye
R41	330K	330k		read from the schematic by eye
R42	22K	22k		read from the schematic by eye
R43	22K	22k		read from the schematic by eye
R45	1M	1M		read from the schematic by eye
R46	390R	390		read from the schematic by eye
R47	1M	1M		read from the schematic by eye
R48	470K	470k		read from the schematic by eye
R49	1M	1M		read from the schematic by eye
R50	100k	100k		read from the schematic by eye
R51	1M	1M		read from the schematic by eye
R52	10k	10k		read from the schematic by eye
R54	100k	100k		read from the schematic by eye
R55	1k	1k		read from the schematic by eye
R56	100k	100k		read from the schematic by eye
R57	1M	1M		read from the schematic by eye
Capacitors 29
C1	220u	220u		electrolytic; read from the schematic by eye
C2	22n	22n		read from the schematic by eye
C3	1u	1u		electrolytic; read from the schematic by eye
C4	10u	10u		electrolytic; read from the schematic by eye
C5	10n	10n		read from the schematic by eye
C6	1u	1u		electrolytic; read from the schematic by eye
C7	10n	10n		read from the schematic by eye
C8	220p	220p		read from the schematic by eye
C9	100n	100n		read from the schematic by eye
C10	2n2	2.2n		read from the schematic by eye
C11	330p	330p		read from the schematic by eye
C12	10u	10u		electrolytic; read from the schematic by eye
C13	10n	10n		read from the schematic by eye
C14	47n	47n		read from the schematic by eye
C15	100n	100n		read from the schematic by eye
C16	1u	1u		electrolytic; read from the schematic by eye
C17	100n	100n		read from the schematic by eye
C19	1u	1u		electrolytic; read from the schematic by eye
C20	100n	100n		read from the schematic by eye
C21	100n	100n		read from the schematic by eye
C22	10n	10n		read from the schematic by eye
C23	22n	22n		read from the schematic by eye
C24	1n	1n		read from the schematic by eye
C25	4n7	4.7n		read from the schematic by eye
C26	220p	220p		read from the schematic by eye
C27	1u	1u		electrolytic; read from the schematic by eye
C28	1u	1u		read from the schematic by eye
C29	1u	1u		electrolytic; read from the schematic by eye
C30	100n	100n		read from the schematic by eye
Diodes 6
V1	1N34A	1N34A		germanium; read from the schematic by eye
V2	1N34A	1N34A		germanium; read from the schematic by eye
V3	1N4148	1N4148		read from the schematic by eye
V4	1N4148	1N4148		read from the schematic by eye
V5	1N4148	1N4148		read from the schematic by eye
V6	1N4148	1N4148		read from the schematic by eye
Transistors 3
V7	BC548B	BC548B		output buffer; read from the schematic by eye
V9	BC548B	BC548B		LED driver; read from the schematic by eye
×3	J110	J110		N-channel JFET switches, drawn without designators; read from the schematic by eye
ICs 6
IC01	TL072	TL072		read from the schematic by eye
IC02	TL074	TL074		read from the schematic by eye
IC03	TL074	TL074		read from the schematic by eye
IC04	MC14013	MC14013		dual D flip-flop; read from the schematic by eye
IC05	4053B	4053B		drawn in two places; read from the schematic by eye
IC06	MC14027BCD	MC14027BCD		dual JK flip-flop; read from the schematic by eye
Potentiometers 3
R8	A100K	A100k	Potentiometer	"POTAR 100k log", input level/drive; read from the schematic by eye
R44	A100K	A100k	Potentiometer	"POTAR 100k log", octave mix level; read from the schematic by eye
R53	A100K	A100k	Potentiometer	"POTAR 100k log", octave mix level; read from the schematic by eye
Switches 1
S2	SPST	SPST		switch across C5 on the flip-flop set line; read from the schematic by eye
LEDs 1
H3	YELLOW	YELLOW		indicator LED, drawn "YELLOW"; read from the schematic by eye

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