Enclosure not stated · 3 knobs
Carl Martin Crush Zone
Based on the Carl Martin Crush Zone· 2 other boards clone it
- Category
- Distortion
- Controls
- Distortion · Tone · Level
- Build
- Vero· 17×15· 18 cuts, 8 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Carl Martin, Distortion
From the post
A quite interesting one. It is basically an old Tim Escobedo circuit (Punch in the Face silicon/FET fuzz face variant) sandwished between two op amp gainstages. The input cap is only at 220pF, try 4,7nF-10nF to fatten things up a bit. A trimpot is added for easy biasing for the J FET. Stock fixed value is 5,6k.
Schematic is avaiable HERE.
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 Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 23 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×1 | 680Ω | 680 | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 5.6K | 5.6k | read from the layout by eye | |
| ×4 | 10K | 10k | read from the layout by eye | |
| ×2 | 12K | 12k | read from the layout by eye | |
| ×4 | 100K | 100k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×2 | 2.2M | 2.2M | read from the layout by eye | |
| Capacitors 7 | ||||
| ×2 | 220pF | 220p | legend: try a bigger value for the 220pF input cap; read from the layout by eye | |
| ×1 | 5.6nF | 5.6n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×3 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | BC547B | BC547B | read from the layout by eye | |
| Q2 | J201 | J201 | JFET; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | TL072 | TL072 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Distortion | B50K | B50k | Potentiometer | read from the layout by eye |
| Tone | B50K | B50k | Potentiometer | read from the layout by eye |
| Level | B50K | B50k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 20K | 20k | unnamed trimmer; read from the layout by eye | |
Other boards based on the Carl Martin Crush Zone
- Carl Martin Crush Zone Effects Layouts (blog) · 1590B
- Carl Martin Crush Zone Tagboard Effects