1590B · 3 knobs
EHX Big Muff - TriangleVerified
Based on the Electro-Harmonix Big Muff Pi· 73 other boards clone it
From the post
I know, this is the 3rd different BMP layout I've done, but this is the one I'm the most happy with. It will easily fit in a 1590B, it has board mounted pots, and said pots aren't all in one row across the top. As with the other Big Muff layouts, you can build pretty much any version on this layout (just refer to the schematics), but the components listed here are for the '72 Triangle version. For the board-mounted pots, I drew this layout with these kind of pots in mind mounted on the solder-side of the board.
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 29 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×1 | 1K | 1k | read from the layout by eye | |
| ×4 | 100K | 100k | read from the layout by eye | |
| ×3 | 150Ω | 150 | read from the layout by eye | |
| ×3 | 33K | 33k | read from the layout by eye | |
| ×4 | 470K | 470k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×2 | 8.2K | 8.2k | read from the layout by eye | |
| ×3 | 12K | 12k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 2.7K | 2.7k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×6 | 100nF | 100n | read from the layout by eye | |
| ×3 | 500pF | 500p | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×1 | 3.9nF | 3.9n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 5 | ||||
| D1 | 1N4148 | 1N4148 | read from the layout by eye | |
| D2 | 1N4148 | 1N4148 | read from the layout by eye | |
| D3 | 1N4148 | 1N4148 | read from the layout by eye | |
| D4 | 1N4148 | 1N4148 | read from the layout by eye | |
| ×1 | 1N4001 | 1N4001 | printed 4001; read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | 2N5089 | 2N5089 | legend: 2N5089, MPSA18, BC550C, etc.; read from the layout by eye | |
| Q2 | 2N5089 | 2N5089 | legend: 2N5089, MPSA18, BC550C, etc.; read from the layout by eye | |
| Q3 | 2N5089 | 2N5089 | legend: 2N5089, MPSA18, BC550C, etc.; read from the layout by eye | |
| Q4 | 2N5089 | 2N5089 | legend: 2N5089, MPSA18, BC550C, etc.; read from the layout by eye | |
| Potentiometers 3 | ||||
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Sustain | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
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