Enclosure not stated · 2 knobs
Sunn Buzz SB-1G
Based on the Sunn Buzz· 2 other boards clone it
From the post
Saw this one over on the Tagboard blog and thought I'd give it a go for Fuzz Friday. It's a silicon variation of the Maestro FZ-1. Originals use a single AA battery (1.5v), so I've included 2 voltage diving resistors to drop the the normal 9v supply down to 1.5v. (The yellow trace in the PCB side indicates the 1.5v rail.) Originals used 2N2923 transistors, but I would imagine other low gain transistors will work (hFE range on the 2923 is 90-180). Just mind the BCE pinout. Here's the schematic for reference.
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 22 rows
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Check before you build · 1 value the reader of this layout was not sure of
- 20K (column 3, top row) and 24K (column 12, top row): printed clearly, unusual values
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 27K | 27k | read from the layout by eye | |
| ×2 | 15K | 15k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×1 | 24K | 24k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| Capacitors 8 | ||||
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 2.2nF | 2.2n | read from the layout by eye | |
| ×2 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 22uF | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 1 | ||||
| ×3 | 2N2923 | 2N2923 | Q1-3; read from the layout by eye | |
| Potentiometers 2 | ||||
| Buzz | A5K | A5k | Potentiometer | read from the layout by eye |
| Volume | A50K | A50k | Potentiometer | read from the layout by eye |