1590A · 2 knobs
CultureJam Stein Fuzz
Based on the CultureJam Stein Fuzz
From the post
For Fuzz Friday, here's another one from CultureJam.
The Stein Fuzz is a lightly modified version of the Roger Mayer Stone Fuzz* pedal (which is itself a lightly modified Fuzz Face). The main difference is more standardized part values (the pots mainly).
It's meant to be a positive ground circuit (center positive, so not daisy chain-able with standard center negative/negative ground effects), but looks like a good candidate to convert to negative ground. The perf side of the layout below reflects the positive ground orientation of parts, and the PCB side reflects negative 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 15 rows
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Check before you build · 1 value the reader of this layout was not sure of
- 100uF at the right edge is drawn as a green film-style body rather than a can; value printed clearly, entered as electrolytic
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| ×2 | 10K | 10k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 2.2uF | 2.2u | 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 | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | BC559 | BC559 | legend: BC559 or 2N5087 (PNP) or BC550 or 2N5088 (NPN); read from the layout by eye | |
| Q2 | BC559 | BC559 | legend: BC559 or 2N5087 (PNP) or BC550 or 2N5088 (NPN); read from the layout by eye | |
| Potentiometers 2 | ||||
| Drive | B2K | B2k | Potentiometer | read from the layout by eye |
| Volume | B50K | B50k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 50K | 50k | read from the layout by eye | |