Enclosure not stated · 3 knobs
Big Muff OpAmp
Based on the Electro-Harmonix Op-Amp Big Muff Pi· 18 other boards clone it
- Category
- Fuzz
- Price
- see vendorin stock
- Tags
- EHX
Schematic
The schematic image is on the project page. Open it at PCBWay.
Parts list 36 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| ×3 | 47k | 47k | read from the schematic by eye | |
| ×2 | 1M | 1M | read from the schematic by eye | |
| ×2 | 220k | 220k | read from the schematic by eye | |
| ×2 | 47 | 47 | read from the schematic by eye | |
| ×1 | 820k | 820k | read from the schematic by eye | |
| ×1 | 560k | 560k | read from the schematic by eye | |
| ×1 | 470k | 470k | read from the schematic by eye | |
| ×1 | 330k | 330k | read from the schematic by eye | |
| ×1 | 100k | 100k | read from the schematic by eye | |
| ×1 | 62k | 62k | read from the schematic by eye | |
| ×1 | 56k | 56k | read from the schematic by eye | |
| ×1 | 10k | 10k | read from the schematic by eye | |
| ×1 | 8k2 | 8.2k | read from the schematic by eye | |
| ×1 | 5k6 | 5.6k | read from the schematic by eye | |
| ×1 | 4k7 | 4.7k | read from the schematic by eye | |
| ×1 | 1k2 | 1.2k | read from the schematic by eye | |
| Capacitors 12 | ||||
| ×2 | 150n | 150n | read from the schematic by eye | |
| ×2 | 100n | 100n | one marked 100n* (optional supply bypass); read from the schematic by eye | |
| ×1 | 220n | 220n | read from the schematic by eye | |
| ×1 | 120n | 120n | read from the schematic by eye | |
| ×1 | 10n | 10n | read from the schematic by eye | |
| ×1 | 4n7 | 4.7n | read from the schematic by eye | |
| ×1 | 150p | 150p | marked 150p* (optional); read from the schematic by eye | |
| ×1 | 1u | 1u | electrolytic; read from the schematic by eye | |
| ×1 | 1u | 1u | film, output coupling; read from the schematic by eye | |
| ×1 | 4u7 | 4.7u | electrolytic; read from the schematic by eye | |
| ×1 | 10u | 10u | electrolytic; read from the schematic by eye | |
| ×1 | 220u | 220u | electrolytic; read from the schematic by eye | |
| Diodes 2 | ||||
| ×6 | 1N914 | 1N914 | marked 1N914* (three in series each way); read from the schematic by eye | |
| ×1 | 1N5817 | 1N5817 | read from the schematic by eye | |
| ICs 2 | ||||
| ×1 | 4558 | 4558 | dual op-amp, both sections used; read from the schematic by eye | |
| ×1 | 741 | 741 | read from the schematic by eye | |
| Potentiometers 3 | ||||
| Sustain | B10k | B10k | Potentiometer | read from the schematic by eye |
| Tone | B10k | B10k | Potentiometer | read from the schematic by eye |
| Vol | B50k | B50k | Potentiometer | read from the schematic by eye |
| Switches 1 | ||||
| Tone Bypass | SPDT | SPDT | read from the schematic by eye | |
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