Enclosure not stated · 4 knobs

Pendulum Tremolo+

The original Dead Astronaut Pendulum Tremolo+· 1 other board or layout builds it

Schematic

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	Notes
Resistors 18
R1	47r	47		not: omit this resistor on V 0.1 board.
R2	10k	10k
R3	470k	470k
R4	220k	220k
R5	1M	1M
R6	100k	100k
R7	100k	100k
R8	100k	100k
R9	220k	220k
R10	220k	220k
R11	220k	220k
R12	4.7k	4.7k
R13	220k	220k
R14	470r	470
R15	1k	1k
R16	3.3k	3.3k
R18	4.7k	4.7k
R19	220r	220
Capacitors 12
C1	100n	100n
C2	100uf	100u
C3	47uf	47u
C4	330p	330p
C5	1uf	1u
C6	10n	10n
C7	2.2uf	2.2u
C8	2.2n	2.2n
C9	2.2n	2.2n
C10	10uf	10u
C11	560p	560p
C12	1n	1n
Diodes 1
D1	1N5817	1N5817
ICs 2
IC1	TL072	TL072
IC2	TL072	TL072
Opto 2
LDRFILTER	LDR	LDR	LDR	22K TO 1M LDR5MM PHOTOCELL; light dependent
LDRTREM	LDR	LDR	LDR	22k to 1M LDR5MM PHOTOCELL; light dependent
Potentiometers 4
F-Depth	B50k	B50k	Potentiometer
Speed	A1M	A1M	Potentiometer
T-Depth	B5k	B5k	Potentiometer
VOL	B22k	B22k	Potentiometer	note: wire this pot in reverse order.on
Switches 3
ON/ON	SPDT	SPDT	Switch	on/on
SW1	SPDT	SPDT	Switch	ON ON; SQ/TRI
SW2	SPDT	SPDT	Switch	ON/OFF/ON SPDT; FILTON/OFF/ON
LEDs 4
D2	LED5MM	LED5MM	LED	standard diffused yellow; TREM
D3	LED5MM	LED5MM	LED	yellow; INDICATOR; I used green for the indicator led
D4	LED5MM	LED5MM	LED	standard diffused yellow; FILTER
FSLED	3MMLED	3MMLED	LED	LED3MM LED3MM