[sdiy] xr2206

[synthplayer88 at spymac.com]

Does anyone know where I can get these XR2206 or XR2207 chips?

Do you actually buy direct from their sales office?

Thanks!


On Fri Jan 21 21:40 , 'Scott Stites' <scottnoanh at peoplepc.com> sent:

>> Someone has a web page "Birth of a Synth". It mentions an XR2206, but I
>> couldn't find any details.
>
>
>That would be my page.  This summer I was beta testing some circuits for
>Thomas for a book he'd hoped would be out now, only life (actually a heavy
>duty teaching schedule) got in the way.  He sent me a manuscript of it, and
>it's full of pretty cool stuff concerning the XR-2206.  Hopefully he'll pick
>back up on during summer hiatus.  BTW, he was working on another book (the
>manuscript I have was about 566's, 8038's, XR2206's) about more general
>synth circuts - hope that one comes out, too.  I've tested some circuits
>from it, and they were pretty good.
>
>In the meantime, I got sucked into other things, the VCO's expo converter is
>on protoboard, and I just haven't gotten back to testing the brass tacks on
>it yet, which I should.  Part of my agreement with TH wasn't to publish any
>of the schemos, so that's why there's so little info.
>
>As for the XR2206, don't overlook the balanced modulator =0)
>
>Another thing - the below message was posted a couple of weeks ago and
>passed with hardly a ripple, but I certainly enjoyed it.  Not the XR-2206,
>but the XR2207 (see below)
>
>Cheerio,
>Scott
>
>----- Original Message -----
>From: "James J. Clark" clark at cim.mcgill.ca>
>To: synth-diy at dropmix.xs4all.nl>
>Sent: Monday, January 10, 2005 7:15 PM
>Subject: [sdiy] XR2207 VCO
>
>
>> Hi everyone, this is my first post here, but some of you may know me from
>> the Nord Modular or Reaktor lists.
>>
>> I have been working on a number of DIY projects building some Doepfer
>> format modules. I have the details (some still sketchy) on my web page:
>> http://www.cim.mcgill.ca/~clark/emusic.html
>>
>> One module that might interest you is a VCO based on the XR2207 VCO
>> chip. I had a bunch of these lying around and thought it would be fun
>> to try and make these into a synth VCO. As it turns out, they make quite a
>> respectable VCO, with a very high quality triangle wave. The linearity is
>> sufficient for synth purposes. I have some comparison of the VCO with the
>> Doepfer A-110 on my web site.
>>
>> Of course, any comments would be welcome!
>>
>> Jim
>> clark at cim.mcgill.ca
>>
>
>