Enclosure not stated · 4 knobs

Carl Martin Heavy Drive

Based on the Carl Martin Heavy Drive· 2 other boards clone it

Category: Overdrive· Distortion Boost and Overdrive
Controls: Gain · Attack · Edge · Level
Price: see vendor
Tags: Distortion Boost and Overdrive

Open the schematic at Experimentalists Anonymous

Schematic

The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.

Parts list 48 rows

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Ref	Value	Normalized	Type	Notes
Resistors 21
R1	10k	10k		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	2k2	2.2k		read from the schematic by eye
R15	56k	56k		read from the schematic by eye
R19	15k	15k		read from the schematic by eye
R50	1M	1M		read from the schematic by eye
R51	1M	1M		read from the schematic by eye
R52	150E	150		150 ohm; read from the schematic by eye
R53	47k	47k		read from the schematic by eye
R54	10k	10k		read from the schematic by eye
R55	22k	22k		read from the schematic by eye
R56	82k	82k		read from the schematic by eye
R57	10k	10k		read from the schematic by eye
R58	10k	10k		read from the schematic by eye
R59	22k	22k		read from the schematic by eye
R60	22k	22k		read from the schematic by eye
R61	1k8	1.8k		read from the schematic by eye
R62	1k8	1.8k		read from the schematic by eye
R67	100k	100k		read from the schematic by eye
R68	100k	100k		read from the schematic by eye
Capacitors 18
C1	1u	1u		read from the schematic by eye
C2	10n	10n		read from the schematic by eye
C3	100n	100n		read from the schematic by eye
C4	1u	1u		read from the schematic by eye
C10	56p	56p		read from the schematic by eye
C21	39n	39n		read from the schematic by eye
C22	22p	22p		read from the schematic by eye
C23	470n	470n		read from the schematic by eye
C24	1u	1u		read from the schematic by eye
C25	47n	47n		read from the schematic by eye
C26	4n7	4.7n		read from the schematic by eye
C27	22n	22n		read from the schematic by eye
C28	4n7	4.7n		read from the schematic by eye
C29	680p	680p		read from the schematic by eye
C30	1u	1u		read from the schematic by eye
C34	100uF	100u		25V (drawn 100/25); read from the schematic by eye
C35	10u	10u		35V; read from the schematic by eye
C36	100n	100n		read from the schematic by eye
Diodes 3
D2	1N4148	1N4148		read from the schematic by eye
D3	1N4148	1N4148		read from the schematic by eye
D4	1N4148	1N4148		reverse-polarity protection; read from the schematic by eye
ICs 1
U2	MC33079	MC33079		quad op amp, sections A-D; read from the schematic by eye
Potentiometers 4
Gain	A1M	A1M	Potentiometer	P1, 1M log; read from the schematic by eye
Attack	B100K	B100k	Potentiometer	P2, 100k lin; read from the schematic by eye
Edge	B500K	B500k	Potentiometer	P3, 500k lin; read from the schematic by eye
Level	B5K	B5k	Potentiometer	P4, 5k lin; read from the schematic by eye
LEDs 1
LED1	LED	LED		no part number given; read from the schematic by eye

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