Enclosure not stated · 3 knobs
Claybridge Fuzzmaster Mk. IVVerified
Based on the Claybridge Fuzzmaster Mk. IV
From the post
How about an austrailian fuzz box from the late 60s? Amazing that there is still undiscovered old circuits around... Note that pot values and tapers are still unconfirmed but all of them is most likely 500k. Schematic is 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 18 rows
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Check before you build · 1 value the reader of this layout was not sure of
- Volume, Treble and Fuzz pots: legend says only 'possibly 500k', taper unknown
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×2 | 1M | 1M | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×1 | 68K | 68k | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 18K | 18k | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 3 | ||||
| ×3 | 1nF | 1n | read from the layout by eye | |
| ×3 | 100nF | 100n | read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | BC337 | BC337 | read from the layout by eye | |
| Q2 | BC337 | BC337 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Volume | 500K | 500k | Potentiometer | legend: all pots possibly 500k, tapers unknown; read from the layout by eye |
| Treble | 500K | 500k | Potentiometer | legend: all pots possibly 500k, tapers unknown; read from the layout by eye |
| Fuzz | 500K | 500k | Potentiometer | legend: all pots possibly 500k, tapers unknown; read from the layout by eye |