[sdiy] Need Schematics for Buchla 400, 500, 700

[Wood]

Mark Verbos has done allot of Buchla stuff, maybe he is the guy to talk to.
Wood
----- Original Message ----- 
From: "Peter Grenader" <peter at buzzclick-music.com>
To: "Aaron Lanterman" <lanterma at ece.gatech.edu>; <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, August 10, 2005 7:02 PM
Subject: Re: [sdiy] Need Schematics for Buchla 400, 500, 700


> The Buchla 500 is basically a 200 with a computer interface. There was no
> special circuitry in the modules themselves - they were vanilla 200. The 500
> had a few  I/0 port modules, which were unto themselves and probably had
> drivers, maybe DACs and ADC's??? Only three 500s were ever made to my
> knowledge...good luck finding prints!
> 
> Pardon me if this reads like the beginning of the Lord of the Rings:
> 
> 1) One was at Cal Arts, sold off in the mid 80's.  In the pictures linked
> below, can see the I/O modules right above Mort's head and the CRT next to
> his left ear. The thing barely visable under the CRT is the corner of the
> QWERTY keyboard.  Jill Fraser is the blond in the photo with her legs
> crossed -there's more on her in a second:
> 
> http://www.buzzclick-music.com/mort.html
> 
> 2) Another is still installed at Evergreen College in Washington State -
> note interface next to output module:
> 
> http://www.evergreen.edu/media/musictech/images/studios/buchla200big03.jpg
> 
> 3) And I third ring made it to the elves. Ah...i think a 3rd 500 made it to
> Europe?  Rick?
> 
> If I *really* had to track down schematics, I'd try the tech person at
> Evergreen, whoever that is.  Don, forget it.  John Payne would be the only
> faculty guy at Cal Arts who would possibly know, but he retired a couple of
> years ago and I'm pretty sure when the 500 left he looked skyward, said
> thank you and threw the books in an incinerator.
> 
> If you can track down a guy named Ray Wersching (not sure how you spell
> that), he was the guy at Cal Arts who had the hood up on the 500's computer
> most of the time, but most of that was s/w.  You must remember, it was
> archaic even before it was old.  There was no storage outside of ram and a
> punch paper tape reader on the teletype.  You had to MANUALLY load the
> operation system on boot up with a series of 16 switches on the faceplate of
> the machine and that operating system was never completed.  Jill Fraser
> worked with it like a dog for six months generating the control tracks for
> Subotnick's Game Room and Sky of Cloudless Sulfur from his scores.  The
> thing was a mess.
> 
> hope this helps.,
> 
> - P
> 
> 
> 
> 
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