Akashic Guitar effects circuit lookup
SENSITIVITYLEVEL

1590B · 2 knobs

Aion FX

Quark (Legacy)

Based on the Maxon OD-880· 5 other boards clone it

Category
Overdrive
Controls
Sensitivity · Level
Difficulty
Easy
Price
see vendor
Buy the PCB at Aion FX Build document

From the vendor

The Quark Overdrive is a clone of the Maxon OD-880 Overdrive / Soft Distortion. The original unit only had Distortion (called Sensitivity) and Volume controls. This project adds two switches: a clipping switch, allowing you to use a second switchable combination of diodes, and an EQ switch that affects the gain structure and bass corner frequency.

Schematic

The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 36 rows

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RefValueNormalizedTypeNotes
Resistors 15
R110k10k
R2470k470k
R310k10k
R410k10k
R5470k470k
R6100R100
R7100k100k
R84k74.7k
R910k10k
R1010k10k
R119k19.1k
R12100k100k
R1368k68k
R1410k10k
R1510k10k
Capacitors 10
C147n47n
C247n47n
C347n47n
C4100n100n
C5100n100n
C64n74.7n
C7100n100n
C8100n100n
C947uF47uelec
C1010uF10uelec
Diodes 7
D51N9141N914
D61N9141N914
D71N9141N914
D81N9141N914
D31N9141N914
D41N9141N914
D11N40021N4002
ICs 1
IC3LM741PLM741P
Potentiometers 2
SENSITIVITY500KBB500kPotentiometer
LEVEL10KBB10kPotentiometer
LEDs 1
LED1intoINTO

Other boards based on the Maxon OD-880