Enclosure not stated · 3 knobs
Solid Gold FX RosieVerified
Based on the Solid Gold Fx Rosie· 2 other boards clone it
From the post
Happy Fuzz Friday, all! Here's a cool silicon Tone Bender style fuzz from Solid Gold Fx. Aside from using silicon transistors, the first stage is a JFET. When the switch is closed it adds in a 4.7uF input cap in parallel with the 330pF input cap. You could replace the switch with a B100k pot (lug 1 to Sw1 pad, lugs 2-3 to Sw2 pad) to blend the two values. Set the trimmer to 4.5v for the JFET and adjust by ear as needed.
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 23 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 6.8nF | 6.8n | read from the layout by eye | |
| ×1 | 330pF | 330p | read from the layout by eye | |
| ×2 | 100pF | 100p | read from the layout by eye | |
| ×2 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | J201 | J201 | JFET; read from the layout by eye | |
| Q2 | BC239 | BC239 | read from the layout by eye | |
| Q3 | BC239 | BC239 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Fuzz | C1K | C1k | Potentiometer | read from the layout by eye |
| Bias | B10K | B10k | Potentiometer | read from the layout by eye |
| Volume | A50K | A50k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 50K | 50k | read from the layout by eye | |
| Switches 1 | ||||
| Switch | SPST | SPST | Sw1 / Sw2 wires; read from the layout by eye | |
Other boards based on the Solid Gold Fx Rosie
- Solid Gold Fx Rosie Dirtbox Layouts
- Pinkish Bender Fuzz Dog · 1590B · £31.20