[sdiy] Polyevolver, AudioMidi Synth Guru talk last nite.

[karl dalen]

are you shure its "VCOs" as in CCO "current controlled oscillator",
ie, a linear oscillator (integrator + comparator trigger) or if
its more of the DCO variant type of VCO? 
Tom marketed the MARION SYNTH as using "HRO's", 
high range oscillators wich sugests to the 
timer+ integrator type of VCO!

would be interesting to know if the polyevolver uses VCO's!

Reg
KD 
--- Tom Arnold <xyzzy at sysabend.org> wrote:
> On Wed, Apr 20, 2005 at 10:38:02AM -0700, Barry Klein wrote:
> > Saw the AudioMidi event last nite and asked Dave.  The chip is an improved
> > Curtis chip that Doug Curtis did as a favor to Dave.  Doug is now employed
> > in a different non-music-related field so I doubt more chips will follow...
> 
> It was actually designed for Tom Oberheim's Marion Synth and the initial
> batch Dave got from Overheim directly.  Back when the Evolver was still new,
> got to see Dave give a talk at the local AES meeting.  As I think has been
> mentioned, was facinating to hear how he basically designed, build, and
> shipped a synth without ever leaving the house.  I've had the lid off a Poly
> Evolver Rack and sure enough it still has the Marion chips in it...
> 
> Wonder if there is some way to hack the two unused VCO's to life ( he used
> two chips in the original evolver to get 4 filters, but only used two of the
> VCOs... )
> 
> -- 
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