Enclosure not stated · 3 knobs
MXR Custom Badass '78 DistortionVerified
Based on the MXR Custom Badass '78 Distortion· 4 other boards clone it
- Category
- Distortion
- Controls
- Distortion · Tone · Output
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Distortion, MXR
From the post
I've wanted to draw this one up for a while. It's a fantastic clone/variation of the Boss DS-1 Distortion. I had one for a while and loved it, but ended up selling it to fund some other stuff. But I'm definitely adding this one to the pile. You can sub a TL072 or JRC4558 in place of the TLC2262 if you need to.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 36 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- 39nF at row M: clear on the board, but the wiring diagram's label looks like 38nF where a trace crosses it
- 1.8M at bottom left: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| ×6 | 10K | 10k | read from the layout by eye | |
| ×4 | 100K | 100k | read from the layout by eye | |
| ×2 | 6.8K | 6.8k | read from the layout by eye | |
| ×2 | 2.2K | 2.2k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| ×1 | 22Ω | 22 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 1.8M | 1.8M | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| Capacitors 10 | ||||
| ×1 | 150pF | 150p | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 39nF | 39n | read from the layout by eye | |
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×3 | 1uF | 1u | drawn as box caps; read from the layout by eye | |
| ×1 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×2 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×5 | 1N4148 | 1N4148 | read from the layout by eye | |
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | MPSA14 | MPSA14 | MPSA14 or similar; read from the layout by eye | |
| Q2 | MPSA14 | MPSA14 | MPSA14 or similar; read from the layout by eye | |
| Q3 | MPSA14 | MPSA14 | MPSA14 or similar; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | TLC2262 | TLC2262 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Distortion | B100K | B100k | Potentiometer | labelled Distort on the board; read from the layout by eye |
| Tone | B10K | B10k | Potentiometer | read from the layout by eye |
| Output | B100K | B100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Crunch | SPST | SPST | Crunch Switch, wired to Sw1/Sw2; read from the layout by eye | |
| LEDs 2 | ||||
| D1 | 3mm red LED | 3MM RED LED | clipping LED on the board; read from the layout by eye | |
| D2 | 3mm red LED | 3MM RED LED | clipping LED on the board; read from the layout by eye | |
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