Enclosure not stated · 3 knobs
Run Off Groove 22/7Verified
Based on the Run Off Groove 22/7· 2 other boards clone it
- Category
- Distortion
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Distortion, Fuzz, Run Off Groove
From the post
Here's something interesting to do with some of those 4049UB chips. It's a CMOS Big Muff (22/7 being the fractional equivalent of pi). Brian from ROG added a switch to the tone stack to allow for flat response and a super scooped response, in addition to the classic scooped mids. I've also drawn up a version without that switch if you don't want to mess with the extra wiring. Schematic and sound clips can be found on the ROG project page.
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 23 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×6 | 1M | 1M | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×1 | 27K | 27k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| Capacitors 8 | ||||
| ×3 | 150pF | 150p | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 6.8nF | 6.8n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×1 | 33nF | 33n | read from the layout by eye | |
| ×5 | 100nF | 100n | read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| ×4 | 1N4148 | 1N4148 | read from the layout by eye | |
| ICs 1 | ||||
| ×1 | 4049UB | 4049UB | CD4049UB hex inverter; read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | A100K | A100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Switch | DPDT on/off/on | DPDT ON/OFF/ON | toggle, wired to Sw 1, 2, 5, 6; read from the layout by eye | |
Other boards based on the Run Off Groove 22/7
- Runoffgroove 22/7 Dirtbox Layouts
- Runoffgroove 22/7 Tagboard Effects