Enclosure not stated · 2 knobs
Ace Tone FM-2 Fuzz MasterVerified
Based on the Ace Tone FM-2 Fuzz Master· 3 other boards clone it
From the post
Slightly modernized layout for a forgotten classic. Transistor pinout is per the transistors you most likely have already. Original has C369s, which are rare and have a different pinout. There's added series polarity protection and for the clipping diodes, you may use what you like the best. Schematic i have doesn't specify which are used on the original, but i suspect those may be 1N34A or similar Germanium diodes. You should get a bit more output level with modern ones like 1N4148 etc.
Here's another version of the board with Beaker's modifications as discussed below. The switch and the poor "Fuzz Adjustment" controls have been replaced with tone pot that's way more usable and the volume control on this one should allow higher output levels.
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 21 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×2 | 1K | 1k | read from the layout by eye | |
| ×7 | 10K | 10k | read from the layout by eye | |
| ×4 | 15K | 15k | read from the layout by eye | |
| ×3 | 1.8K | 1.8k | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×2 | 47K | 47k | read from the layout by eye | |
| ×7 | 100K | 100k | read from the layout by eye | |
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 68Ω | 68 | read from the layout by eye | |
| Capacitors 6 | ||||
| ×2 | 100pF | 100p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×8 | 1uF | 1u | 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 | |
| Diodes 2 | ||||
| D1 | 1N5817 | 1N5817 | added polarity protection; read from the layout by eye | |
| ×2 | 1N34A | 1N34A | D2, D3; small signal diodes (try 1N34A, 1N4148, 1N4001 etc.); read from the layout by eye | |
| Transistors 1 | ||||
| ×5 | 2N3904 | 2N3904 | Q1-Q5; 2N3904, 2N5088 or similar (C369 in original, mind the pinout); read from the layout by eye | |
| Potentiometers 2 | ||||
| Fuzz Adjust | B500K | B500k | Potentiometer | read from the layout by eye |
| Volume | B100K | B100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Tone | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |
Other boards based on the Ace Tone FM-2 Fuzz Master
- Ace Tone FM-2 Fuzzmaster Stock Dirtbox Layouts
- Ace Tone FM-2 Fuzzmaster w. mods Dirtbox Layouts
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