Enclosure not stated · 2 knobs
Wren & Cuff Phat Phuk BVerified
Based on the Wren and Cuff Phat Phuk B· 2 other boards clone it
From the post
The Phat Phuk is a boost from Wren & Cuff that combines a JFET stage with a germanium transistor stage. This got traced over on the Tagboard Forum and the original that was traced was the B version. From Wren & Cuff:
Here’s what the Phat Phuk is: A germanium/JFET booster. A unique sounding pedal which adds a beautiful sheen to your bass’ top end and a bit of grit to the overall tone. It’s a fantastic pedal for situations where you want a lift in your overall level, during a chorus or bridge for example, with a bit of bawdy bump via the germanium transistor.
The exact germanium transistor is a Chinese PNP on the originals, but others can be used. Shoot for around 90 hFE. On originals there is a trimmer that is essentially a gain control. I've laid it out so that you have the option for a trimmer or external board mounted pot on the same board. So if you want the pot externally, don't populate the trimmer and vise versa. Here's the schematic for reference.
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 18 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| ×1 | 100Ω | 100 | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 91K | 91k | read from the layout by eye | |
| ×1 | 390K | 390k | read from the layout by eye | |
| ×3 | 2.2M | 2.2M | read from the layout by eye | |
| Capacitors 5 | ||||
| ×1 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | tantalum; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×1 | 1N4001 | 1N4001 | printed 4001; read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | J201 | J201 | JFET; read from the layout by eye | |
| Q2 | PNP Germanium | PNP GERMANIUM | type only, no part number; read from the layout by eye | |
| Potentiometers 2 | ||||
| Bias | B2K | B2k | Potentiometer | alternative to the 2K trimmer; read from the layout by eye |
| Volume | A250K | A250k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 2K | 2k | omit if using external Bias pot; read from the layout by eye | |
Other boards based on the Wren and Cuff Phat Phuk B
- Mr Creosote Fuzz Dog · 1590B · £31.20
- Wren and Cuff Phat Phuk B Tagboard Effects