Enclosure not stated · 4 knobs
VFE Pedals Fuzz DuoVerified
Based on the VFE Fuzz Duo· 2 other boards clone it
From the post
A great (soon to be discontinued) fuzz by VFE Pedals.
You can find more info on their website here and schematic on their FB page.
01/07/2018 Layout updated!
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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 27 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 470R | 470 | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| Capacitors 7 | ||||
| ×2 | 100n | 100n | one ceramic disc, one film box; read from the layout by eye | |
| ×1 | 1u | 1u | read from the layout by eye | |
| ×1 | 22n | 22n | read from the layout by eye | |
| ×1 | 4n7 | 4.7n | read from the layout by eye | |
| ×1 | 1n | 1n | read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| ×1 | 22u | 22u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | BC108 | BC108 | NPN Si, hFE 450-650 (combined total 1000-1200 with Q2); lower hFE in Q1; read from the layout by eye | |
| Q2 | BC108 | BC108 | NPN Si, hFE 450-650 (combined total 1000-1200 with Q1); read from the layout by eye | |
| Q3 | OC139 | OC139 | NPN Ge, hFE 70-130 (combined total 180-220 with Q4); legend: OC139, OC140; lower hFE in Q3; read from the layout by eye | |
| Q4 | OC139 | OC139 | NPN Ge, hFE 70-130 (combined total 180-220 with Q3); legend: OC139, OC140; read from the layout by eye | |
| Inductors 3 | ||||
| L1 | 1mH | 1mH | read from the layout by eye | |
| L2 | 1mH | 1mH | read from the layout by eye | |
| L3 | 1mH | 1mH | read from the layout by eye | |
| Potentiometers 4 | ||||
| Level | A500K | A500k | Potentiometer | read from the layout by eye |
| Filter | W1M | W1M | Potentiometer | read from the layout by eye |
| Bias | B25K | B25k | Potentiometer | read from the layout by eye |
| Fuzz | C1K | C1k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| Fdbk | 200K | 200k | read from the layout by eye | |
| Switches 2 | ||||
| Switch 1 | DPDT on/on | DPDT ON/ON | read from the layout by eye | |
| Switch 2 | DPDT on/on | DPDT ON/ON | read from the layout by eye | |
Other boards based on the VFE Fuzz Duo
- VFE Pedals Fuzz Duo Dirtbox Layouts
- VFE Fuzz Duo Effects Layouts (blog)