Enclosure not stated · 1 knob
One Knob Big MuffVerified
Based on the Electro-Harmonix Big Muff Pi· 73 other boards clone it
From the post
Request. This is a One Knob Big Muff based on Joe Gagan's schematic and values. It makes sense in a lot of ways because many people dime the gain controls anyway, but you may want to experiment with the 39K and 47n from Q3 collector to Q4 base to get the tone setting the way you want it. As usual socket and experiment.
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 19 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| ×5 | 100K | 100k | read from the layout by eye | |
| ×3 | 470K | 470k | read from the layout by eye | |
| ×3 | 15K | 15k | read from the layout by eye | |
| ×2 | 39K | 39k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×2 | 2K2 | 2.2k | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| Capacitors 5 | ||||
| ×5 | 100n | 100n | read from the layout by eye | |
| ×3 | 470p | 470p | read from the layout by eye | |
| ×1 | 330n | 330n | read from the layout by eye | |
| ×1 | 47n | 47n | read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×4 | 1N914 | 1N914 | D1 to D4; read from the layout by eye | |
| Dx | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | 2N5088 | 2N5088 | legend: 2N5088 or similar; read from the layout by eye | |
| Q2 | 2N5088 | 2N5088 | legend: 2N5088 or similar; read from the layout by eye | |
| Q3 | 2N5088 | 2N5088 | legend: 2N5088 or similar; read from the layout by eye | |
| Q4 | 2N5088 | 2N5088 | legend: 2N5088 or similar; read from the layout by eye | |
| Potentiometers 1 | ||||
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
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