1590B · 2 knobs
Quark (Legacy)
Based on the Maxon OD-880· 1 other board clones it
- Category
- Overdrive
- Controls
- Sensitivity · Level
- Difficulty
- Easy
- Price
- see vendor
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 37 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| R1 | 10k | 10k | ||
| R2 | 470k | 470k | ||
| R3 | 10k | 10k | ||
| R4 | 10k | 10k | ||
| R5 | 470k | 470k | ||
| R6 | 100R | 100 | ||
| R7 | 100k | 100k | ||
| R8 | 4k7 | 4.7k | ||
| R9 | 10k | 10k | ||
| R10 | 10k | 10k | ||
| R11 | 9k1 | 9.1k | ||
| R12 | 100k | 100k | ||
| R13 | 68k | 68k | ||
| R14 | 10k | 10k | ||
| R15 | 10k | 10k | ||
| Capacitors 10 | ||||
| C1 | 47n | 47n | ||
| C2 | 47n | 47n | ||
| C3 | 47n | 47n | ||
| C4 | 100n | 100n | ||
| C5 | 100n | 100n | ||
| C6 | 4n7 | 4.7n | ||
| C7 | 100n | 100n | ||
| C8 | 100n | 100n | ||
| C9 | 47uF | 47u | elec | |
| C10 | 10uF | 10u | elec | |
| Diodes 7 | ||||
| D5 | 1N914 | 1N914 | ||
| D6 | 1N914 | 1N914 | ||
| D7 | 1N914 | 1N914 | ||
| D8 | 1N914 | 1N914 | ||
| D3 | 1N914 | 1N914 | ||
| D4 | 1N914 | 1N914 | ||
| D1 | 1N4002 | 1N4002 | ||
| ICs 1 | ||||
| IC3 | LM741P | LM741P | ||
| Potentiometers 3 | ||||
| SENSITIVITY | 500KB | B500k | Potentiometer | |
| LEVEL | 10KB | B10k | Potentiometer | |
| RPD | 1M | 1M | Potentiometer | |
| LEDs 1 | ||||
| LED1 | into | INTO | ||
Other boards based on the Maxon OD-880
- Quark Aion FX · 1590B · $12.50