1590B · 4 knobs
EHX Germanium4 Big Muff Pi
Based on the Electro-Harmonix Big Muff Pi· 73 other boards clone it
- Category
- Distortion
- Build
- Vero· 16×14· 12 cuts, 8 links
- Layout
- Unverified · no build reported at Tagboard Effects yet
- Tags
- Distortion, Electro Harmonix, Overdrive
From the post
Ok. This has absolutely nothing in common with all the other 14 different versions of Big Muff Pi. As the effect has two individual sides, one for distortion and other for overdrive, i thought i'd draw the sides as a separate layouts. You can, of course, use one 16 x 31 board to have both effects on a single board. Or tweak one of them to your liking and fit it in 1590B. With eight pots and two stomp switches, i don't see even Javi fitting all of this in 1590B :)
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 20 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| ×5 | 470K | 470k | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 220Ω | 220 | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 6.2K | 6.2k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| Capacitors 4 | ||||
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×2 | 47uF | 47u | 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 3 | ||||
| Q1 | PN2222 | PN2222 | read from the layout by eye | |
| Q2 | NKT275 | NKT275 | read from the layout by eye | |
| Q3 | NKT275 | NKT275 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | TL072 | TL072 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Volts | A10K | A10k | Potentiometer | read from the layout by eye |
| Gain | A100K | A100k | Potentiometer | read from the layout by eye |
| Bias | B10K | B10k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
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