Enclosure not stated · 3 knobs
EHX Civil War Big MuffVerified
Based on the Electro-Harmonix Big Muff Pi· 73 other boards clone it
From the post
Jeremy just mentioned it and as I had the template to hand and it would only take 2 minutes I thought I'd include this one.
I've got another schematic which is identical other than the 430p caps which are shown as 500p, but you're always best experimenting with those anyway on a case by case basis to make sure you're avoiding any fizz.
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 30 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
- 20K resistor right of Q4 (top left quadrant): printed clearly, unusual value
- 430p ceramics (three of them): printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×4 | 100K | 100k | read from the layout by eye | |
| ×4 | 470K | 470k | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×3 | 12K | 12k | read from the layout by eye | |
| ×3 | 390R | 390 | read from the layout by eye | |
| ×1 | 2K7 | 2.7k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| Capacitors 7 | ||||
| ×6 | 100n | 100n | read from the layout by eye | |
| ×3 | 430p | 430p | read from the layout by eye | |
| ×2 | 47n | 47n | read from the layout by eye | |
| ×1 | 3n9 | 3.9n | read from the layout by eye | |
| ×2 | 10n | 10n | one on the board, one on the mids switch; read from the layout by eye | |
| ×1 | 4n7 | 4.7n | on the mids switch; read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | 1N914 | 1N914 | read from the layout by eye | |
| D2 | 1N914 | 1N914 | read from the layout by eye | |
| D3 | 1N914 | 1N914 | read from the layout by eye | |
| D4 | 1N914 | 1N914 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | KT3102E | KT3102E | Transistors were KT3102E. Try 2N5089, MPSA18 etc; read from the layout by eye | |
| Q2 | KT3102E | KT3102E | Transistors were KT3102E. Try 2N5089, MPSA18 etc; read from the layout by eye | |
| Q3 | KT3102E | KT3102E | Transistors were KT3102E. Try 2N5089, MPSA18 etc; read from the layout by eye | |
| Q4 | KT3102E | KT3102E | Transistors were KT3102E. Try 2N5089, MPSA18 etc; read from the layout by eye | |
| Potentiometers 3 | ||||
| Sustain | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Mids | DPDT on/off/on | DPDT ON/OFF/ON | toggle, Scooped / Flat / Boosted mids; drawn as 3 pos DPDT; read from the layout by eye | |
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