Enclosure not stated · 3 knobs
Shin-Ei FY-2 Companion Fuzz with modsVerified
Based on the Shin-ei FY-2 Companion Fuzz· 10 other boards clone it
From the post
Did this layout a while back and built it. Where the original FY-2 is sluggish on output level and the overall sound is quite thin and nasal, i noticed a couple of nice mods for the circuit. GGG has added simple one transistor amplifier at the output to deal with the volume issues and I<3Fuzz forum has a thread of people giving the circuit a mid scoop control. This adds a lot of versatility to the circuit. I've also included a series polarity protection. It is pretty damn wild sounding thing with slow attack and the general feel brings thick mushroom cloud to mind. Definitely over the top vintage feel to it.
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 21 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×2 | 10K | 10k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 1.2M | 1.2M | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 390Ω | 390 | read from the layout by eye | |
| Capacitors 6 | ||||
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×2 | 1nF | 1n | read from the layout by eye | |
| ×1 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | polarity protection; read from the layout by eye | |
| Transistors 1 | ||||
| ×3 | 2N2222 | 2N2222 | low gain NPN Si (2N2222, 2N3904 etc.); read from the layout by eye | |
| Potentiometers 3 | ||||
| Fuzz | B50K | B50k | Potentiometer | read from the layout by eye |
| Scoop | B5K | B5k | Potentiometer | read from the layout by eye |
| Level | B50K | B50k | Potentiometer | read from the layout by eye |
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