1590BB · 8 knobs
The Everlasting Tantrum v2
Based on the DOD Devi Ever Grindhaus
- Category
- Fuzz
- Price
- see vendor
- Tags
- verified, gerbers, faceplate, CC BY-NC-SA 4.0
From the vendor
The Everlasting Tantrum is my take on an unreleased fuzz pedal that was designed by DOD and Devi Ever. It was essentially a Hyperion followed by a Big Muff style tone stack and then a booster stage afterwards. I've augmented it with a switch to bypass the tone stack, another switch to allow you to choose between three different Devi Ever fuzzes, and an oscillation potentiometer that lets you introduce feedback into the fuzz circuit itself.
v2 moves the pedal to a larger 1590BB enclosure with top mounted jacks and adds two new switches, Q1 Flip and Q2 Flip, that reverse the collector and emitter of the first two transistors. Flipping them gives a much smoother sounding fuzz with a lot less gain.
You can see the build report here.
Built

Schematic
Drawn by Cryptid Effects, CC BY-NC-SA 4.0. Gerbers and faceplate on GitHub.
Parts list 36 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| R1 | 1k | 1k | ||
| R2 | 2M2 | 2.2M | ||
| R3 | 10k | 10k | ||
| R4 | 2M2 | 2.2M | ||
| R5 | 10k | 10k | ||
| R6 | 150k | 150k | ||
| R7 | 2M2 | 2.2M | ||
| R8 | 10k | 10k | ||
| R9 | 39k | 39k | Big Muff Tone Stack | |
| R10 | 39k | 39k | Big Muff Tone Stack | |
| R100 | 4k7 | 4.7k | Current limiting resistor, choose to taste | |
| Capacitors 11 | ||||
| C1 | 100nF | 100n | Film | |
| C2 | 100nF | 100n | Film | |
| C3 | 100nF | 100n | Film | |
| C4 | 100nF | 100n | Film | |
| C5 | 100nF | 100n | Film | |
| C6 | 100nF | 100n | Film | |
| C7 | 100nF | 100n | Film | |
| C8 | 4nF | 4n | Film, Big Muff Tone Stack | |
| C9 | 10nF | 10n | Film, Big Muff Tone Stack | |
| C100 | 100uF | 100u | Electrolytic | |
| C101 | 100nF | 100n | Film | |
| Diodes 1 | ||||
| D100 | 1N5817 | 1N5817 | ||
| Transistors 4 | ||||
| Q1 | MPSA18 | MPSA18 | ||
| Q2 | MPSA18 | MPSA18 | ||
| Q3 | 2N2907A | 2N2907A | ||
| Q4 | MPSA18 | MPSA18 | ||
| Potentiometers 4 | ||||
| Input | B100k | B100k | Potentiometer | 16mm right angle pot |
| Oscillation | A10k | A10k | Potentiometer | 16mm right angle pot |
| Tone | B100k | B100k | Potentiometer | 16mm right angle pot |
| Level | A100k | A100k | Potentiometer | 16mm right angle pot |
| Switches 4 | ||||
| Fuzz Mode | SPDT | SPDT | Switch | On / Off / On |
| Tone Bypass | DPDT | DPDT | Switch | On / On |
| Q1 Orientation | DPDT | DPDT | Switch | On / On |
| Q2 Orientation | DPDT | DPDT | Switch | On / On |
| LEDs 1 | ||||
| D101 | LED 3mm | LED 3MM | choose your poison, 5mm works as well. | |