Enclosure not stated · 3 knobs
Keeley Psi FuzzVerified
Based on the Keeley Psi Fuzz· 3 other boards clone it
From the post
Happy Fuzz Friday, everybody. The Psi Fuzz is an IC/germanium hybrid fuzz. It takes some inspiration from the IC Big Muff, but with Keeley's own distinct design touches. Schematic can be found here.
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 35 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this layout was not sure of
- 120nF next to the 100nF at the top: printed clearly, unusual value
- 1uF x4: drawn as grey rounded boxes rather than round cans, taken as film/box caps, not electrolytic
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 16 | ||||
| ×1 | 5.6K | 5.6k | read from the layout by eye | |
| ×3 | 220K | 220k | read from the layout by eye | |
| ×1 | 1.2K | 1.2k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 8.2K | 8.2k | read from the layout by eye | |
| ×3 | 100K | 100k | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| ×1 | 1.5K | 1.5k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 510K | 510k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 47Ω | 47 | read from the layout by eye | |
| Capacitors 10 | ||||
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 120nF | 120n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×4 | 1uF | 1u | box film; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| ×1 | 1N34 | 1N34 | read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | AC187 | AC187 | read from the layout by eye | |
| ICs 1 | ||||
| ×1 | TL074 | TL074 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Cream | A50K | A50k | Potentiometer | read from the layout by eye |
| Voice | B10K | B10k | Potentiometer | read from the layout by eye |
| Voltage | A10K | A10k | Potentiometer | read from the layout by eye |
| LEDs 2 | ||||
| D1 | ? | ? | value not given; drawn as a red LED; read from the layout by eye | |
| D2 | ? | ? | value not given; drawn as a red LED; read from the layout by eye | |
Other boards based on the Keeley Psi Fuzz
- Keeley Psi Fuzz Dirtbox Layouts
- Kinetic Fuzz PedalPCB · 125B · $8.00
- Keeley PSI Tagboard Effects