Enclosure not stated · 1 knob

Analog Octave Down

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

From the vendor

Analog Octave Down is a single clean octave down similar to the Boss OC-2.

PCB: Manufactured Double Sided

Board Dimensions: 74.4 x 51.6 mm

Layouts in instructions: PCB

Revisions: 11.29.2013 - Added R59 and R60 Version2.1 Released 5.5.2023

Buy a kit at Musikding: Analog Octave Down Kit

The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Ref	Value	Normalized	Type
Resistors 32
R1	1M	1M
R4	1M	1M
R5	330K	330k
R6	2K7	2.7k
R7	10K	10k
R8	22K	22k
R9	330K	330k
R10	33K	33k
R14	100K	100k
R15	10K	10k
R16	1K	1k
R31	68K	68k
R32	33K	33k
R33	10K	10k
R34	1K	1k
R35	22K	22k
R36	22K	22k
R37	1K	1k
R38	10K	10k
R39	5K6	5.6k
R40	330K	330k
R41	330K	330k
R42	22K	22k
R43	27K	27k
R44	47K	47k
R45	47K	47k
R46	4K7	4.7k
R47	1M	1M
R48	1M	1M
R49	100K	100k
R59	100K	100k
R60	100K	100k
Capacitors 16
C2	1µ	1u
C3	10µ	10u
C4	220p	220p
C5	.0022µ	2.2n
C9	100µ	100u
C11	1µ	1u
C18	.01µ	10n
C20	330p	330p
C21	.01µ	10n
C22	1µ	1u
C23	1µ	1u
C24	1µ	1u
C25	220u	220u	elec
C26	.0047µ	4.7n
C27	470p	470p
C28	.022µ	22n
Diodes 6
D1	4001	4001
D6	1N914	1N914
D7	1N914	1N914
D8	1N914	1N914
D9	1N914	1N914
D10	1N34A	1N34A
Transistors 2
Q2	2N3904	2N3904
Q8	J201/2SK30A	J201 / 2SK30A
ICs 3
IC1	TL074P	TL074P
IC2	LM324N	LM324N
IC3	4013N	4013N
Potentiometers 1
OCT	100K	100k	Potentiometer
LEDs 1
D2	3MM LED	3MM LED