Enclosure not stated · 2 knobs
Foxx Select A Fuzz MOJO layout
Based on the Foxx Select A Fuzz· 3 other boards clone it
From the post
The last mojo layout for a while. This one isn't one of the classics, quite the opposite. It isne of the rarest vintage fuzzes out there and for the longest time noone knew what the circuit was like until Deadend Fx managed to trace it a couple of years ago. It is a quite heavy affair, especially when the larger input caps is selected. Fairly low gain NPN silicon transistors is recommended, in the 100-150 Hfe range.
Compact layout avaiable 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 Dirtbox Layouts. 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
- 16K at column 4 (rows I-M): printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 5.6K | 5.6k | read from the layout by eye | |
| ×2 | 12K | 12k | read from the layout by eye | |
| ×1 | 16K | 16k | read from the layout by eye | |
| ×1 | 18K | 18k | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 10 | ||||
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 470nF | 470n | read from the layout by eye | |
| ×1 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×2 | 10uF | 10u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D1 | 1N4148 | 1N4148 | legend: 1N4148/1N914; read from the layout by eye | |
| D2 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | 2N3565 | 2N3565 | legend: Probably 2N3565; read from the layout by eye | |
| Q2 | 2N3565 | 2N3565 | legend: Probably 2N3565; read from the layout by eye | |
| Q3 | 2N3565 | 2N3565 | legend: Probably 2N3565; read from the layout by eye | |
| Potentiometers 2 | ||||
| Mellow/Bright | B10K | B10k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Switch | 2P6T rotary | 2P6T ROTARY | set to 5 throws; read from the layout by eye | |
Other boards based on the Foxx Select A Fuzz
- Dial "F" For Fuzz Dead End FX · 1590BBS · $15.00
- Foxx Select A Fuzz Dirtbox Layouts
- Foxx Select-A-Fuzz Effects Layouts (blog)