Enclosure not stated · 5 knobs
PedalPCB CMOS Overdrive
Based on the PedalPCB CMOS Overdrive
From the post
Another very interesing by Chuck D. Bones over at the PedalPCB forum. The inspiration comes from some of Catalinbreads overdrive and fuzz designs but adds a lot of refinement amd tweakability.. Schematic is avaiable HERE.
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 Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 35 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| ×3 | 1M | 1M | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×2 | 3.3K | 3.3k | read from the layout by eye | |
| ×2 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×1 | 27K | 27k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 270K | 270k | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×1 | 680Ω | 680 | read from the layout by eye | |
| Capacitors 10 | ||||
| ×3 | 220nF | 220n | read from the layout by eye | |
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 560pF | 560p | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | PF5102 | PF5102 | JFET; read from the layout by eye | |
| Q2 | 2N5089 | 2N5089 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | CD4007 | CD4007 | read from the layout by eye | |
| Potentiometers 5 | ||||
| Gain | B500K | B500k | Potentiometer | read from the layout by eye |
| Treble | B100K | B100k | Potentiometer | read from the layout by eye |
| Mid | W20K | W20k | Potentiometer | read from the layout by eye |
| Bass | C5K | C5k | Potentiometer | read from the layout by eye |
| Level | A100K | A100k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 25K | 25k | read from the layout by eye | |