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ampage archive

Vintage threads from the first ten years

SSM2040

:

6/10/1997 5:05 AM
Mike Oriente	SSM2040 Where can I get this part?

6/10/1997 6:51 AM
CJ Landry	Try MITA. Musical Instrument Technicians Assoc.. Steve Morrison, the keeper of this great Ampage web site, has a link to MITA in the other links portion of this site. Christian

6/10/1997 6:55 PM
Steve Morrison	Mike - Aren't you going to tell us what you need the part for?

6/11/1997 5:27 AM
Mike Oriente	I need the SSM2040 for the "Smooth Phasor" by Thomas Henry.

6/11/1997 7:53 AM
Mark Amundson	Check Tom Henry's Midwest Analog Products website for possible part availability. Also, you can e-mail him. Check www.analog.com for the SSM2040 spec sheet using Adobe Acrobat. Mark Amundson,

6/19/1997 6:11 PM

I could have sworn I had a copy of the
article on the "smooth phasor" in one of my
binders, but I seem to have either lost it
or accidentally thrown it out or something.
Anyone have a scan of it?

FYI,the SP uses the SSM2040 as a 4-stage
phase shifter in tandem with a sweep
oscillator adapted from Jacques Boileau's
original article in POLYPHONY back in 1981 or
so. Instead of a conventional triangle wave,
it uses some fancy techniques to combine a
sinusoidal form on the lower half of the wave
and a triangular form on the upper half. The
result is that as the phasor approaches the
lowest portion of its sweep range, it
decellerates, and then begins to accellerate
again as it starts to sweep upward. Craig
Anderton uses a CEM3340 VCO chip to do the
same thing in his classic Hyperflange effect
that PAiA used to sell as a kit (say, why
don't some of those folks hoarding SAD1024's
call up PAiA and get them to reissue the damn
thing! - it was a beaut').

Other than that, the SP is a fairly standard
affair with the usual controls.

6/21/1997 1:35 PM
R.G. Keen	I have quite a number of 1024's and offered PAIA a hundred for that at a very reasonable price. They thought about it and decided not to.

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