Enclosure not stated · 4 knobs
MOSFET PieVerified
Based on the Fuzzhead Fx MOSFET Pie V2· 1 other board clones it
- Category
- Distortion
- Build
- Perfboard
- Layout
- Verified · Effects Layouts (blog) marks it as built and working
- Tags
- Distortion, Fuzz
From the post
Stumbled across this Big Muff variation designed by Anders over on the Tagboard forum. Seemed like a cool design for Fuzz Friday. Here's what he had to say about it:
Inspired by Skreddy Top Fuel and a DIY muff project One Knob Gilmour I have been tinkering with a big muff circuit using mosfet transistors for all four gain stages along with mosfets wired as diodes in the second clipping stage. I've been using 2N7000's just because I have tons of them but other mosfets like BS170 should work as well. For more variety I added AMZ big muff tonestack. Sounds tighter than a regular muff and has more distortion elements than fuzz. If any fancy building this shielded wires is a must since the gain is pretty high and it's on the edge of oscillation when pots is dimed. Coupling cap values is mostly from Violet Rams Head muffs to give a balanced tone but those could be tweaked to desired values as well as the small BC caps.
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 31 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×2 | 220Ω | 220 | read from the layout by eye | |
| ×1 | 680Ω | 680 | read from the layout by eye | |
| ×2 | 180Ω | 180 | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×2 | 5.6K | 5.6k | read from the layout by eye | |
| ×6 | 10K | 10k | read from the layout by eye | |
| ×9 | 1M | 1M | read from the layout by eye | |
| Capacitors 9 | ||||
| ×6 | 100nF | 100n | read from the layout by eye | |
| ×2 | 330nF | 330n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×3 | 390pF | 390p | read from the layout by eye | |
| ×1 | 180pF | 180p | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 47pF | 47p | read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×1 | 1N5817 | 1N5817 | read from the layout by eye | |
| ×1 | 9.1V | 9V1 | zener, printed 9.1v; read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| Q2 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| Q3 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| Q4 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| Q5 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| Q6 | 2N7000 | 2N7000 | MOSFET; read from the layout by eye | |
| Potentiometers 4 | ||||
| Sustain | A100K | A100k | Potentiometer | read from the layout by eye |
| Scoop | C25K | C25k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
| LEDs 2 | ||||
| D1 | 3mm red LED | 3MM RED LED | read from the layout by eye | |
| D2 | 3mm red LED | 3MM RED LED | read from the layout by eye | |
Other boards based on the Fuzzhead Fx MOSFET Pie V2
- Fuzzhead Fx MOSFET Pie V2 Dirtbox Layouts