SSM2040 CAT dilemma...

[jupiter4]

Hi,

One solution might be to buy my Digisound State variable filter bank. It is a
custom 19inch rack mounting version with 2 state varible filters in it. I am
after 250 quid for it and I live in the UK.
Alternatively, I have a single State variable fully built with SSM2040 but it
doesn't work ( it used too, I haven't had time to find out what is wrong). I
don't think the SSM2040 is dead tho... I could check this by swapping it into
the dual unit (which I think i did once). I am after 75 quid for this one,
this has the normal 9*3 inch front panel.

Cheers, Dave...
_______________________________________________________________________________
To: synth-diy at horus.sara.nl
From: Matthew S. Padden on Fri, Dec 13, 1996 4:29 pm
Subject: SSM2040 CAT dilemma...
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From: "Matthew S. Padden" <m.s.padden at huddersfield.ac.uk>
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To: synth-diy at horus.sara.nl
Subject: SSM2040 CAT dilemma...
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Hi DIYheads..

	Here's a dilemma. I have an Octave CAT synth, very fine indeed. I also have 
most of the Digisound schematics, and would dearly love to build the 80-5 
state variable VCF (LP, HP, BP all at 12 or 24dB slope, notch) which 
uses....an SSM2040. The CAT's (very good, but rather suddenly appearing 
resonance) VCF uses.... an SSM2040. This is the only SSM2040 chip I have 
ever seen anywhere. So the dilemma is, do I keep the CAT as is, or remove 
the SSM2040 to build the 80-5 VCF and route the CAT through it when I need 
to? Bear in mind if the chip dies, I'm stuffed.

	Press your answer buttons now....

--
Matthew S. Padden
Computer Music Research Group
Music Dept.
Huddersfield University
Queensgate
Huddersfield
England HD1 3DH
p: +44 1484 422288 x2402
f: +44 1484 472656
e: m.s.padden at hud.ac.uk