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Subject: SDS-8 presets and noise

From: jesper <jesper@...>
Date: 2016-04-21

Hi list,

I put the sold-as-broken-SDS-8 on the bench today, rigged it to a PSU
and it lit up (to my surprise) as they're supposed to. Fiddling with the
controls I came to the conclusion that the presets sound messed up
indeed. A sort of metallic floor tom sound dominating all, though they
differ in length and somewhat in pitch. But forget the disco toms I
remember being there from scratch.

Putting it in user mode everything seems to work basically as I recall
it should (reminding me of why I sold every single one I've come
across). But a few Q's arose:

1. Is the bend up not as wide in the frequency spectrum as bend down? (I
can imagine not since the bend down effect was the desired one at the time)
2. How is noise supposed to sound? (I think it's a white noise burst...
but it's not available here in any case)
3. That noise, is it shared among all the channels? (That could explain
a lot!)
4. Any schematics available on this sucker? (I haven't found any online)

Anyway, I'm surprised it was working this well. But thinking of how the
case looked yesterday I can imagine that shorting all kinds of things on
the board if the former owner just plugged it in as it were.

I hope to get this back in decent shape. It's always fun to save and
protect the Simmons legacy, even though I doubt I'll keep the SDS-8...

--
electronically yours, jesper

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