Enclosure not stated · 3 knobs
Vita Fuzz
Based on the Vita Fuzz
From the post
Fuzz Face derivate with a Big Muff style tonestack manufactured in Riga, Latvia in the late 70's. Originals has a foot controlled treadle which adjusting volume. I subbed 30k resistor connecting to collector of Q2 with a 50k trimpot for fine tuning bias.
Unverified
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 21 rows
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Check before you build · 1 value the reader of this layout was not sure of
- 2M at column 11: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 2M | 2M | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 33nF | 33n | read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 1 | ||||
| ×3 | 2N3906 | 2N3906 | Q1-Q3: Unknown PNP silicon, possibly KT349. Try 2N3906, 2N2907A etc.; read from the layout by eye | |
| Potentiometers 3 | ||||
| Fuzz | B2K | B2k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | B10K | B10k | Potentiometer | read from the layout by eye |
| Trimmers 2 | ||||
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 50K | 50k | read from the layout by eye | |