Steiner-Parker? Other diode filters?

[<<marjan>>]

> On a more related note, does anyone else out there know of synth VCF's
> that used diodes as the control voltage element (as opposed to the
> transistors in the Moog design)?  I know of only a few:
> 
> EMS VCS3/Synthi
> Roland TB-303
> Korg MS-50 (these three can be seen at http://www.seanet.com/~costello)
> Practical Electronics Minisonic
> 

there's one on moo site 
http://www.ecr.mu.oz.au/~ndf/synth/archive/main.html

there were some diodes in transcendent 2000 vcf but it contains 
ca 3080 also (diodes in bridge config ?) - check anders 
spontons site


marjan