Enclosure not stated
Sheepylove· PCB001
OD77 - The primordial overdrive
Based on the BOSS OD-1· 2 other boards clone it
- Category
- Overdrive· OD
- Price
- €10.00in stock
From the vendor
The original overdrive, evolved from the Distortion+, it took out the distortion hard clipping and added overdrive soft clipping in the op-amp feedback loop.
This is the original, quad op-amp version. Whether that makes a difference or not is up to you. Cork sniffers can search for a RC3403 or NJM3403, but it sounds great with a TL074 or equivalent.
Schematic
The schematic is in the vendor's build document, page 4. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 32 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| R2 | 100 | 100 | ||
| R3 | 33k | 33k | ||
| R4 | 33k | 33k | ||
| R9 | 33k | 33k | ||
| R6 | 1k | 1k | ||
| R7 | 220k | 220k | ||
| R8 | 10k | 10k | ||
| R11 | 10k | 10k | ||
| R12 | 10k | 10k | ||
| R13 | 10k | 10k | ||
| R10 | 4k7 | 4.7k | ||
| R14 | 4k7 | 4.7k | ||
| R15 | 470k | 470k | ||
| R16 | 470 | 470 | ||
| R17 | 100k | 100k | ||
| Capacitors 9 | ||||
| C1 | 100u | 100u | ||
| C2 | 47u | 47u | ||
| C3 | 100n | 100n | ||
| C8 | 100n | 100n | ||
| C4 | 47n | 47n | ||
| C5 | 47n | 47n | ||
| C6 | 18n | 18n | ||
| C7 | 1u | 1u | ||
| C9 | 1u | 1u | ||
| Diodes 4 | ||||
| D1 | 1N5817 | 1N5817 | ||
| D3 | 1N914 | 1N914 | ||
| D4 | 1N914 | 1N914 | ||
| D5 | 1N914 | 1N914 | ||
| ICs 1 | ||||
| IC1 | NJM3403 | NJM3403 | Any quad op-amp should work. Try a TL074. | |
| Potentiometers 2 | ||||
| POT1 | B10k | B10k | ||
| POT2 | A1M | A1M | ||
| LEDs 1 | ||||
| D2 | LED | LED | ||
Other boards based on the BOSS OD-1
- BOSS OD-1 Experimentalists Anonymous
- Oddity Overdrive PedalPCB · 125B · $8.00