Enclosure not stated
DOD Overdrive 250
Based on the DOD 250 Overdrive Preamp· 11 other boards clone it
- Category
- Overdrive· Distortion Boost and Overdrive
- Price
- see vendor
- Tags
- Distortion Boost and Overdrive
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 12 rows
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Check before you build · 1 value the reader of this schematic was not sure of
- 500K pot: suffix after 500K reads 'RA' (reverse audio?) but is blurred
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×2 | 10K | 10k | one drawn '10k' (input), one '10K' (output to diodes); read from the schematic by eye | |
| ×2 | 1M | 1M | one feedback, one bias from + input to the 20K/20K divider; read from the schematic by eye | |
| ×2 | 20K | 20k | bias divider; read from the schematic by eye | |
| ×1 | 47K | 47k | gain leg, in series with the 500K pot; read from the schematic by eye | |
| Capacitors 4 | ||||
| ×1 | 0.001uF | 1n | across the clipping diodes; read from the schematic by eye | |
| ×1 | 0.01uF | 10n | input; read from the schematic by eye | |
| ×1 | 0.05uF | 50n | gain leg; read from the schematic by eye | |
| ×2 | 10uF | 10u | electrolytic; one output coupling, one bias filter; read from the schematic by eye | |
| Diodes 1 | ||||
| ×2 | Diode | DIODE | clipping diodes to ground; no part number given; read from the schematic by eye | |
| ICs 1 | ||||
| ×1 | 741 | 741 | read from the schematic by eye | |
| Potentiometers 2 | ||||
| ×1 | 500K | 500k | Potentiometer | gain pot (unnamed); drawn '500KRA', probably reverse-audio taper; read from the schematic by eye |
| ×1 | 100K | 100k | Potentiometer | output level pot (unnamed); read from the schematic by eye |
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