Ace Tone - FM-3 Fuzz Master  [schematic]

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
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Bernardduur
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Post by Bernardduur »

Is R5 really 150k or is it a typo?
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Greg
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Post by Greg »

Bernardduur wrote:Is R5 really 150k or is it a typo?
It's really 150K.
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Dan N
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Post by Dan N »

Greg_G wrote:
2SC1000.. all caps are Greenies except the 250 and 3300pf which are ceramic.
Argh, none of these in my parts stash. I think they are Toshiba made. I'm attaching the Japanese data sheet. Looks like they come in GR and BL. Mr. Kakehashi used GR in the AD-50, so I'll probably go with that range when I build one.
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2SC1000.pdf
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Greg
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Post by Greg »

Dan N wrote:
Argh, none of these in my parts stash. I think they are Toshiba made.
I built a clone with BC547s from a bulk pack and it sounds great.
culturejam wrote: We are equal opportunity exposure artists.

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Dr Tony Balls
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Post by Dr Tony Balls »

Anyone have the schematic for this to re-upload? Its not longer here.

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jrod
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Post by jrod »

I should. I'll check when I get home.

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Greg
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Post by Greg »

Here it is:
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FM-3fsb.jpg
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Post by jrod »

Cool...that's what I have, too.

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Post by soggybag »

Has anyone built this? I was thinking of building it.

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EmmG
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Post by EmmG »

I did. R5 at 150k is a really unusual value there and helps make this the fuzziest, most distorted Big Muff I've ever built.

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