Enclosure not stated · 2 knobs
Field Effects Acceleron FuzzVerified
Based on the Resonant Field Effects Acceleron Fuzz· 1 other board clones it
From the post
Here's a pretty unique fuzz for Fuzz Friday–the Acceleron from Field Effects. It uses a mix of BJT and JFET transistors and offers a wide range of fuzz tones. I've laid it out for board mounted pots and you'll notice a big box film cap labeled ??? It's probably 2.2µF, but socket and experiment.
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 25 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 3 values the reader of this layout was not sure of
- 47.5K right of Q3: printed clearly, unusual value
- 49.9Ω bottom centre: printed clearly, unusual value
- 1.87K bottom centre: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| ×4 | 10K | 10k | read from the layout by eye | |
| ×4 | 1M | 1M | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 47.5K | 47.5k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 49.9Ω | 49.9 | read from the layout by eye | |
| ×1 | 1.87K | 1.87k | read from the layout by eye | |
| Capacitors 7 | ||||
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 1uF | 1u | box film; read from the layout by eye | |
| ×1 | ? | ? | value not given, printed ??? on a box capacitor; read from the layout by eye | |
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 470uF | 470u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×3 | 1N4148 | 1N4148 | read from the layout by eye | |
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Q2 | MPSA14 | MPSA14 | read from the layout by eye | |
| Q3 | MPSA18 | MPSA18 | read from the layout by eye | |
| Q4 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Q5 | MPSA14 | MPSA14 | read from the layout by eye | |
| Q6 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Potentiometers 2 | ||||
| Fuzz | A10K | A10k | Potentiometer | read from the layout by eye |
| Volume | A500K | A500k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Contour | DPDT on/off/on | DPDT ON/OFF/ON | read from the layout by eye | |
Other boards based on the Resonant Field Effects Acceleron Fuzz
- Resonant Field Effects Acceleron Fuzz Dirtbox Layouts