Enclosure not stated · 3 knobs
Sam Ash Fuzz-StainerVerified
Based on the Sam Ash Fuzz-Stainer· 5 other boards clone it
From the post
The Fuzz-Stainer is a pretty rare fuzz box made by Sam Ash in the 70s. Don't confuse this with the Sam Ash Fuzzz Boxx/AstroTone, as it's a different circuit. Original units used 2N5173 transistors with BCE pinouts. I've made 2 versions of the layout, one for BCE transistors (on the right) and one for CBE (on the left). 2N2222s or 2N3904s seem like they might be good substitutes. Output is pretty close to unity with the Volume pot maxed, so you may want to replace the 10k pot with a 50k or 100k, and/or reduce or remove the 68k resistor from Volume 2 to Out. To make the trimmer external (like the Jerms clone in the video below), use a B20k pot with lug 3 going to the emitter of Q2, and lugs 1 and 2 going to ground.
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 19 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| ×2 | 15K | 15k | read from the layout by eye | |
| ×3 | 4.7K | 4.7k | read from the layout by eye | |
| ×3 | 22K | 22k | read from the layout by eye | |
| ×1 | 1.5M | 1.5M | read from the layout by eye | |
| ×1 | 220Ω | 220 | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 120pF | 120p | read from the layout by eye | |
| ×2 | 22nF | 22n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×2 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N5173 | 2N5173 | 2N5173 or similar; read from the layout by eye | |
| Q2 | 2N5173 | 2N5173 | 2N5173 or similar; read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | B100K | B100k | 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 1 | ||||
| ×1 | 22K | 22k | read from the layout by eye | |
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