From 70531.2124@compuserve.com Fri Jul  2 03:36 BST 1993
Date: 01 Jul 93 22:33:53 EDT
From: dennis barton <70531.2124@compuserve.com>
To: Peter Cassidy <peterc@comm.mot.com>
Subject: manuals

>> Funny. I thought you were in Britain (???!!)
 
You probably hear the remnants of my accent from growing up in London..
California sure has more sunshine!
 
I will post a copy of the service manual to you.
 
PAIA is Oklahoma sells to the whole world and takes credit cards. I think
they still sell those CEM3340 chips. Around $12 if I recall correctly.
 
PAIA:
 voice  405 340 6300
 fax    405 340 6378
 


From: ricard@axis.se (Ricard Wolf)
Date: Thu, 25 Nov 93 21:53:13 MET
To: analogue@magnus.acs.ohio-state.edu
Subject: Curtis chips


>    I am looking for these things, (Curtis Chips).  Does anyone know the
> best (cheapest) place to order them from?  And are the the "best" for
> building a modular synth?  I have heard (second-hand) that the VCO's are
> not stable enough for serious work.  How is the range on the VCO's?
> And as long as I am here, Does anyone know of any good books on the
> construction of Modular synths?    thanks.

Curtis chips can be obtained from the following sources:


	PAIA Electronics
	3200 Teakwood Lane
	Edmund, Oklahoma 73013
	(405) 340-6300

They stock the following subset of the Curtis range:

CEM 3310 ADSR
CEM 3320 VCF
CEM 3330 DUAL VCA
CEM 3340 VCO
CEM 3360 DUAL VCA
CEM 3379 Voltage Controled Signal Processor
         (4 pole low pass VCF, VCA, 2 chan VC pan)
CEM 5508 OCTAL SAMPLE and HOLD

all come with data sheets

The chips are in fact manufactured by On-Chip systems, here is their address.

     Doug Curtis
     On-Chip Systems
     1190 Coleman Ave.
     San Jose, CA 95110
     (408)988-5400

(On-Chip systems have data sheets for the following:)

CEM3310 CEM3312 CEM3320 CEM3328 CEM3330 CEM3335 CEM3340 CEM3350 CEM3365
CEM3372 CEM3374 CEM3378 CEM3379 CEM3387 CEM3389 CEM3391 CEM3394 CEM3396

The Curtis chips are probably the most stable for synthesiser applications,
but remmember there are several different VCO chips: the 3340 is the
most flexible, but there are other's, such as the 3374 dual VCO. DOn't know
how stability compares between the different types, but there might
be some difference.

/Ricard

-- 
Ricard Wolf                   / | \  / | /-           email: ricard@axis.se
Axis Communications AB       /__|  \/  | \__          uucp:  axisab.se!ricard
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