1590A · 3 knobs
Colorsound 3-Knob ToneBender Reissue
Based on the Colorsound 3-Knob Tone Bender
From the post
I was trolling Google Images the other night looking for schematics and I stumbled across this. I think the only thing this reissue has in common with an original is the enclosure and graphics. It uses a single opamp with soft clipping and a Big Muff-style tone stack. If you use 9mm pots you could probably cram it into a 1590A.
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 14 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×3 | 100K | 100k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×2 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 470Ω | 470 | read from the layout by eye | |
| Capacitors 4 | ||||
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| ×2 | 1N4148 | 1N4148 | read from the layout by eye | |
| ICs 1 | ||||
| ×1 | TL071 | TL071 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Fuzz | B25K | B25k | Potentiometer | read from the layout by eye |