Wednesday, October 8, 2014

Ace Tone FM-2 Fuzz Master

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.


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