Enclosure not stated · 5 knobs
Earthbound Audio SupercolliderVerified
Based on the Earthbound Audio Supercollider· 2 other boards clone it
- Category
- Distortion
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Distortion, Earthbound Audio, Fuzz
From the post
Happy Pi day! The day calls for at least some version of the Big Muff Pi, so here's the Supercollider. I think Cody's asked me to lay this one out like 3 times and I finally remembered to do it. haha This one follows the basic Green Russian Muff with a few component value changes. There's also been a Mids control added to the tone stack and a Mass control that pans between 2 different capacitors at the input. For the Mass control, originals use a B100k pot and a 10n capacitor off lug 2, but Kit Rae suggested using a B150k pot and a 4.7nF capacitor instead (and that's reflected in the layout). His schematic can be found here. There are versions of this pedal out there that include a switch for silicon or LED diodes. I'm assuming that much like the Pharaoh, this option is for the diodes in the 2nd gain stage (1N4001s in the layout below). If you want the clipping switch it won't be hard to wire that off 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
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×3 | 1M | 1M | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×4 | 100K | 100k | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×3 | 12K | 12k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×2 | 5.1K | 5.1k | read from the layout by eye | |
| ×2 | 2.7K | 2.7k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×3 | 390Ω | 390 | read from the layout by eye | |
| Capacitors 7 | ||||
| ×3 | 470pF | 470p | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×4 | 100nF | 100n | read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | 1N4148 | 1N4148 | read from the layout by eye | |
| ×3 | 1N4001 | 1N4001 | two as clippers, one on the supply; read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | MPSA18 | MPSA18 | read from the layout by eye | |
| Q2 | 2N5089 | 2N5089 | read from the layout by eye | |
| Q3 | 2N5089 | 2N5089 | read from the layout by eye | |
| Q4 | 2N5089 | 2N5089 | read from the layout by eye | |
| Potentiometers 5 | ||||
| Mass | B150K | B150k | Potentiometer | read from the layout by eye |
| Mids | B50K | B50k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Gain | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | board pads labelled Level; read from the layout by eye |
Other boards based on the Earthbound Audio Supercollider
- Earthbound Audio Supercollider Dirtbox Layouts
- Earthbound Audio Supercollider Tagboard Effects