Enclosure not stated · 3 knobs
Custom Badass 78
Based on the MXR Custom Badass '78 Distortion· 4 other boards clone it
- Category
- Other
- Controls
- Distortion · Tone · Output
- Price
- see vendorin stock
- Tags
- MXR, MXR, Badass 78, Custom Badass
Schematic
The schematic image is on the project page. Open it at PCBWay.
Parts list 32 rows
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Check before you build · 1 value the reader of this schematic was not sure of
- Crunch switch type: two poles drawn separately (CRUNCH and CRLED), read as one DPDT
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| ×2 | 2M2 | 2.2M | read from the schematic by eye | |
| ×6 | 10k | 10k | read from the schematic by eye | |
| ×4 | 100k | 100k | read from the schematic by eye | |
| ×1 | 1M8 | 1.8M | read from the schematic by eye | |
| ×1 | 22k | 22k | read from the schematic by eye | |
| ×1 | 470k | 470k | read from the schematic by eye | |
| ×1 | 22 | 22 | read from the schematic by eye | |
| ×1 | 47k | 47k | read from the schematic by eye | |
| ×3 | 4k7 | 4.7k | two are LED resistors (LED and CRLED); read from the schematic by eye | |
| ×2 | 2k2 | 2.2k | read from the schematic by eye | |
| ×1 | 470 | 470 | read from the schematic by eye | |
| ×2 | 6k8 | 6.8k | read from the schematic by eye | |
| ×1 | 1M | 1M | read from the schematic by eye | |
| ×1 | 1k | 1k | read from the schematic by eye | |
| Capacitors 8 | ||||
| ×1 | 4u7 | 4.7u | electrolytic; read from the schematic by eye | |
| ×4 | 47n | 47n | read from the schematic by eye | |
| ×2 | 270p | 270p | read from the schematic by eye | |
| ×3 | 1u | 1u | read from the schematic by eye | |
| ×1 | 10n | 10n | read from the schematic by eye | |
| ×1 | 22n | 22n | read from the schematic by eye | |
| ×2 | 100n | 100n | read from the schematic by eye | |
| ×2 | 100u | 100u | electrolytic; read from the schematic by eye | |
| Diodes 2 | ||||
| ×5 | 1N4148 | 1N4148 | one at op-amp input, two switched by Crunch, two in series with the clipping LEDs; read from the schematic by eye | |
| ×1 | 1N5817 | 1N5817 | polarity protection; read from the schematic by eye | |
| Transistors 2 | ||||
| ×1 | BC549C | BC549C | read from the schematic by eye | |
| ×2 | 2N5089 | 2N5089 | read from the schematic by eye | |
| ICs 1 | ||||
| ×1 | TLC2262C | TLC2262C | dual op-amp, both sections used; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Distortion | B100k | B100k | Potentiometer | read from the schematic by eye |
| Tone | B10k | B10k | Potentiometer | read from the schematic by eye |
| Output | B100k | B100k | Potentiometer | read from the schematic by eye |
| Switches 1 | ||||
| Crunch | DPDT | DPDT | drawn as two separate poles: one grounds the 1N4148 pair, one lights the CRLED indicator; read from the schematic by eye | |
| LEDs 1 | ||||
| ×3 | LED | LED | two clipping LEDs to ground, one Crunch indicator LED switched by the CRLED pole; read from the schematic by eye | |
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