Enclosure not stated · 3 knobs

Clay Jones Overdrive / Black Market Overdrive

Based on the Clay Jones Overdrive· 4 other boards clone it

Category: Overdrive
Controls: Gain · Tone · Volume
Price: see vendor
Tags: freestompboxes.org trace

Read the post at Revolution Deux Schematic image The Illuminist (Martin Chittum)

From the vendor

The degooped Clay Jones Overdrive / Black Market Overdrive, which the post shows is a TS808 clone by way of the Landgraff Dynamic Overdrive: BC546B input and output buffers, an OPA2134 Tube Screamer clipping stage with red LED clippers, and the standard tone control. Freestompboxes member Whammy opened one up.

The post says to use 5mm red LEDs for the clippers and an OPA2134 op-amp to get the CJOD sound.

Schematic

The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.

Parts list 36 rows

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Check before you build · 1 value the reader of this schematic was not sure of

The drawing labels the LEDs 3mm red, while the post text says 5mm red LEDs.

Ref	Value	Normalized	Type	Notes
Resistors 16
R1	1K	1k		read from the schematic by eye
R2	510K	510k		read from the schematic by eye
R3	10K	10k		read from the schematic by eye
R4	10K	10k		read from the schematic by eye
R5	10K	10k		read from the schematic by eye
R6	1K	1k		read from the schematic by eye
R7	1K	1k		read from the schematic by eye
R8	220	220		read from the schematic by eye
R9	1K	1k		read from the schematic by eye
R10	1K	1k		read from the schematic by eye
R11	510K	510k		read from the schematic by eye
R12	10K	10k		read from the schematic by eye
R13	100	100		read from the schematic by eye
R14	10K	10k		read from the schematic by eye
R15	10K	10k		read from the schematic by eye
R16	10K	10k		read from the schematic by eye
Capacitors 11
C1	20n	20n		input; read from the schematic by eye
C2	1u	1u		non-polar; read from the schematic by eye
C3	51p	51p		read from the schematic by eye
C4	220n	220n		read from the schematic by eye
C5	220n	220n		read from the schematic by eye
C6	220n	220n		read from the schematic by eye
C7	1u	1u		non-polar; read from the schematic by eye
C8	100n	100n		read from the schematic by eye
C9	10u	10u		electrolytic; read from the schematic by eye
C10	100u	100u		electrolytic; read from the schematic by eye
C11	47u	47u		electrolytic; read from the schematic by eye
Diodes 1
D3	1N914	1N914		polarity protection; read from the schematic by eye
Transistors 2
Q1	BC546B	BC546B		read from the schematic by eye
Q2	BC546B	BC546B		read from the schematic by eye
ICs 1
IC1	OPA2134	OPA2134		read from the schematic by eye
Potentiometers 3
Gain	A1M	A1M	Potentiometer	drawn 1M log; read from the schematic by eye
Tone	B25K	B25k	Potentiometer	read from the schematic by eye
Volume	B100K	B100k	Potentiometer	read from the schematic by eye
LEDs 2
D1	Red LED	RED LED		3mm, clipper; read from the schematic by eye
D2	Red LED	RED LED		3mm, clipper; read from the schematic by eye

Other boards based on the Clay Jones Overdrive

Landgraff Dynamic Overdrive/Clay Jones Overdrive Effects Layouts (blog)
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