Enclosure not stated · 2 knobs
Poltava Fuzz Wah sans LFO
Based on the Poltava Fuzz Wah sans LFO
From the post
Another crazy USSR Fuzz Wah. As with Spektr 1 the LFO section is omitted.
Fuzz circuit
Wah circuit
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 28 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×6 | 10K | 10k | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×2 | 39K | 39k | read from the layout by eye | |
| ×2 | 3.3K | 3.3k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 27K | 27k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 220Ω | 220 | read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×4 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×3 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | D220 | D220 | Try 1N4001; read from the layout by eye | |
| D2 | D220 | D220 | Try 1N4001; read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | GT310B | GT310B | PNP Germanium, Hfe 80-150, low leakage; read from the layout by eye | |
| Q2 | KT315A | KT315A | NPN Silicon, Hfe 80-150, try 2N2222, 2N3903 etc.; read from the layout by eye | |
| Q3 | GT310B | GT310B | PNP Germanium, Hfe 80-150, low leakage; read from the layout by eye | |
| Q4 | KT315A | KT315A | NPN Silicon, Hfe 80-150, try 2N2222, 2N3903 etc.; read from the layout by eye | |
| Potentiometers 2 | ||||
| Tone | B10K | B10k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×2 | 100K | 100k | read from the layout by eye | |
| Switches 1 | ||||
| Switch | SPST | SPST | read from the layout by eye | |