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 »

hey all!

A long time ago I played over an Acetone FM-3; since then I am trying to find a schematic of this unit, just as it sounded so great (well, in my mind)

So does anyone has a schematic of this or know what happens inside one?
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Post by analogguru »

So does anyone has a schematic of this or know what happens inside one?
This I also would like to know/see.....

I haven´t played one, I only have seen pictures of it - like these:
http://www.digimart.net/images/64/DS00123350.jpg
http://www.digimart.net/images/64/DS00123350_1.jpg
http://www.digimart.net/images/64/DS00123350_2.jpg
http://www.digimart.net/images/64/DS00123350_3.jpg

no guts..... :cry:

Rumours say it should be very similar to the Roland AF-100 Bee-Baa (difference: tone pot vs. tone switch)

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Post by Bernardduur »

Thanks for those pics; shame no guts!

The thing is that I played it next to a Bee Baa and this one really blew it away both in sound as in feeling. The unit sounded so much better then that Bee Baa...........

It has been some sort of quest for me now.......
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Post by bajaman »

Wasn't Acetone Roland before they changed their name to Roland???

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Post by Geoffrey Teese »

I've had the FM-2 since it was released way back when (sheesh I'm old...) but my local music store never got in an FM-3. Any sound files anywhere? From the case (thanks for the pics AG) it looks like it could be an FM-2 with additional volume and tone control for the 2nd stage as well as a tone control for the first stage (or maybe the other way around).

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Post by modman »

It's not very revealing, but here is an ebay gut shot from an FM-2:

http://i12.ebayimg.com/03/i/000/c7/94/8b6b_3.JPG
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Post by R.G. »

The Bee Baa and Roland Sustain schemos have been available at geofex since 1996 and 1999 respectively.

The FM-2 is clearly the progenitor of the Univox Superfuzz, the biggest difference being two cascaded separate transistors instead of a two transistor feedback pair.

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Post by Dan N »

I'm pretty far out of the loop these days. Has this been traced?

http://dam.10.forumer.com/a/acetone-fm3 ... t1468.html
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Post by RnFR »

no i don't think it has. i know we would all love to see a schematic.
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Post by Greg »

An FM-3 for sale on Ebay (thanks to Dan N for posting a link in the Stuff Seen For Sale section)..
This would make a nice group buy :D

https://cgi.ebay.com/ws/eBayISAPI.dll?V ... 0136756480
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Post by Sickle »

Greg_G wrote:This would make a nice group buy :D
I think you mean 'would have made a nice group buy'.

Image

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Dan N
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Post by Dan N »

Yea. it sold without even a photo. Graham's description in the link I posted above makes me want to weep. Beyond a BeeBaa and a Fender Blender? Fuck, I should have just bought it. [smilie=a_doh.gif]
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Greg
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Post by Greg »

Don't stress guys.. I DID just buy it.
I figured it wouldn't sit there while we worked out a way to group buy it.
It's appears to be all original, and it sounds better than i could have hoped for.. All will be revealed in due course..
:thumbsup
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Dan N
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Post by Dan N »

:hug: :applause: :horsey: :applause: :hug:

You, sir, are my hero!
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Greg
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Post by Greg »

Why thank you .. :D

It may take a little while to get it traced.. I'm pretty snowed under.. but we'll get there.
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Sickle
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Post by Sickle »

Greg_G wrote:Don't stress guys.. I DID just buy it.
You sure about that, man?
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Post by Sickle »

haha, ok, I'm on crack tonight..for some reason I thought you won yours the same time I did, I guess your BIN was last month?

:scratch:

I need sleep.

haha..

:slap:

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Post by RnFR »

Greg_G wrote:Don't stress guys.. I DID just buy it.
I figured it wouldn't sit there while we worked out a way to group buy it.
It's appears to be all original, and it sounds better than i could have hoped for.. All will be revealed in due course..
:thumbsup
[smilie=eek2.gif] [smilie=eek2.gif] [smilie=eek2.gif] :applause: :applause: :applause: :applause: :hug: :hug: :hug: :mrgreen: :mrgreen: :mrgreen: [smilie=muffin.gif] [smilie=muffin.gif] [smilie=muffin.gif] [smilie=muffin.gif]

can you tell i'm happy?


dude, that is the bees knees! :thumbsup
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Post by Greg »

Sickle.. He must have had 2.. that's a different one to mine. Mine has some rust where the battery was.
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