Enclosure not stated · 3 knobs
Demeter FuzzulatorVerified
Based on the Demeter Fuzzulator· 2 other boards clone it
From the post
This design was pretty awkward to get down to a reasonable size due to two opamps, a trimmer and mere ten diodes on board. I'm not liking the asymmetry, but i still fitted it in a quite compact size. In the demos, this one sounds like a nice and creamy opamp fuzz..
From Demeter site: "The Fuzzulator was designed to be a fuzz with focus. So many fuzzes sound cool but get lost in the mix because they don't have a clear sound image. I solved that problem with tonal pre emphasis before the sound hits the distortion generator. The unit also has both LED or germanium diode distortion available at the flip of a switch." - James
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 29 rows
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Check before you build · 1 value the reader of this layout was not sure of
- 20nF (left, by IC1) and 20K resistor / 20K pots: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×3 | 100K | 100k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 20nF | 20n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 1uF | 1u | read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| Diodes 8 | ||||
| D1 | 1N4148 | 1N4148 | read from the layout by eye | |
| D4 | 1N34A | 1N34A | read from the layout by eye | |
| D5 | 1N34A | 1N34A | read from the layout by eye | |
| D6 | 1N34A | 1N34A | read from the layout by eye | |
| D7 | 1N4148 | 1N4148 | read from the layout by eye | |
| D8 | 1N4148 | 1N4148 | read from the layout by eye | |
| D9 | 1N4148 | 1N4148 | read from the layout by eye | |
| D10 | 1N4148 | 1N4148 | read from the layout by eye | |
| ICs 2 | ||||
| IC1 | LF442 | LF442 | read from the layout by eye | |
| IC2 | TL061 | TL061 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Fuzz | C500K | C500k | Potentiometer | rev. log; read from the layout by eye |
| Tone | A20K | A20k | Potentiometer | read from the layout by eye |
| Volume | A20K | A20k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 5K | 5k | read from the layout by eye | |
| Switches 1 | ||||
| Tight / Loose | SPST | SPST | toggle; read from the layout by eye | |
| LEDs 2 | ||||
| D2 | red LED | RED LED | 3mm; read from the layout by eye | |
| D3 | red LED | RED LED | 3mm; read from the layout by eye | |
Other boards based on the Demeter Fuzzulator
- Demeter Fuzzulator Dirtbox Layouts
- Demeter Fuzzulator Effects Layouts (blog)