Enclosure not stated · 3 knobs
Electro Harmonix Big Muff Pi
Based on the Electro-Harmonix Big Muff Pi· 73 other boards clone it
- Category
- Fuzz· 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 20 rows
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Check before you build · 1 value the reader of this schematic was not sure of
- Tone: pot has no value on the drawing
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×5 | 100k | 100k | read from the schematic by eye | |
| ×3 | 15k | 15k | read from the schematic by eye | |
| ×3 | 470k | 470k | read from the schematic by eye | |
| ×3 | 100 | 100 | emitter resistors; read from the schematic by eye | |
| ×2 | 39k | 39k | one at the input, one in the tone stack; read from the schematic by eye | |
| ×2 | 8.2k | 8.2k | read from the schematic by eye | |
| ×1 | 1k | 1k | below Sustain; read from the schematic by eye | |
| ×1 | 390k | 390k | read from the schematic by eye | |
| ×1 | 10k | 10k | read from the schematic by eye | |
| ×1 | 2.2k | 2.2k | read from the schematic by eye | |
| Capacitors 5 | ||||
| ×5 | 1u | 1u | the four marked * reported to sound better as 0.1uF; read from the schematic by eye | |
| ×3 | 500p | 500p | read from the schematic by eye | |
| ×3 | 0.1uF | 100n | the two clipping-loop caps marked ** reported to sound better as 1.0uF; read from the schematic by eye | |
| ×1 | 0.01uF | 10n | tone stack; read from the schematic by eye | |
| ×1 | 0.004uF | 4n | tone stack; read from the schematic by eye | |
| Diodes 1 | ||||
| ×4 | 1N914 | 1N914 | types unknown; drawing says 1N914s work; read from the schematic by eye | |
| Transistors 1 | ||||
| ×4 | ? | ? | NPN; types unknown, drawing says any high-gain NPN; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Sustain | 100k | 100k | Potentiometer | read from the schematic by eye |
| Tone | ? | ? | Potentiometer | no value drawn; read from the schematic by eye |
| Volume | 100k | 100k | Potentiometer | read from the schematic by eye |
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