125B · 3 knobs
Effects Layouts· DOD33020
Discretionary Overdrive
Based on the EQD White Light· 2 other boards clone it
- Category
- Overdrive
- Controls
- Gain · Level · Tone
- Price
- $6.00in stock
From the vendor
Discrete op amps have been growing in popularity in the audio world and the DISCRETIONARY is my foray into using discrete components in place of a traditional op amp. The DISCRETIONARY is based on the now discontinued EQD White Light (itself based on the Distortion+/OD250 circuit), but with the Joe Davisson Diode compression op amp in place of the IC. This keeps the part count reasonably low and makes for a great sounding dirt box.
The company and product names used in this web site are for identification purposes only and are not affiliated with EFFECTS LAYOUTS, LLC in any way. All trademarks and registered trademarks are the property of their respective owners.
Inspired by the EQD White Light
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 41 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| R1 | 2M | 2M | ||
| R2 | 3.3k | 3.3k | ||
| R3 | 470k | 470k | ||
| R4 | 10k | 10k | ||
| R5 | 6.8k | 6.8k | ||
| R6 | 10k | 10k | ||
| R7 | 100k | 100k | ||
| R8 | 4.7k | 4.7k | ||
| R9 | 1k | 1k | ||
| R10 | 3.3k | 3.3k | ||
| R11 | 10k | 10k | ||
| R12 | 1k | 1k | ||
| R13 | 10k | 10k | ||
| R14 | 10k | 10k | ||
| R15 | 10k | 10k | ||
| R16 | 10k | 10k | ||
| Capacitors 10 | ||||
| C10 | 22µ | 22u | ||
| C1 | 47n | 47n | ||
| C2 | 22µ | 22u | ||
| C3 | 1µ | 1u | ||
| C4 | 22n | 22n | ||
| C5 | 100p | 100p | ||
| C6 | 4.7µ | 4.7u | ||
| C7 | 10n | 10n | ||
| C8 | 2.2n | 2.2n | ||
| C9 | 100µ | 100u | ||
| Diodes 9 | ||||
| D1 | 1N4148 | 1N4148 | ||
| D2 | 1N4148 | 1N4148 | ||
| D3 | 1N4148 | 1N4148 | ||
| D4 | 1N4148 | 1N4148 | ||
| D5 | 1N60p | 1N60P | ||
| D6 | 1N60p | 1N60P | ||
| D7 | 1N60p | 1N60P | ||
| D8 | 1N60p | 1N60P | ||
| D9 | 1N5817 | 1N5817 | ||
| Transistors 3 | ||||
| Q1 | 2N5087 | 2N5087 | ||
| Q2 | 2N5087 | 2N5087 | ||
| Q3 | 2N5088 | 2N5088 | ||
| Potentiometers 3 | ||||
| GAIN | A1M | A1M | Potentiometer | |
| LEVEL | A100K | A100k | Potentiometer | |
| TONE | B25K | B25k | Potentiometer | |
Other boards based on the EQD White Light
- Lanterns Five Cats Pedals · £4.50
- Irrlicht Overdrive PedalPCB · 125B · $8.00