optocouplers for VCAs?

[David Halliday (Volt Computer)]

Interesting!

Also, are there schematics for Buchla circuits available anywhere?  I
would be interested in seeing some of their modules.


Thanks!

> -----Original Message-----
> From:	Grant Richter [SMTP:grichter at execpc.com]
> Sent:	Friday, August 22, 1997 9:24 AM
> To:	David Halliday (Volt Computer); synth-diy at horus.sara.nl
> Subject:	Re: optocouplers for VCAs?
> 
> > 
> > My main thought would be that optoisolators don't track each other
> very
> > well - they would be fine for VCA applications but not for
> multi-stage
> > filters.
> > 
> All of the Buchla filters are made from multiple LED/LCR optocouplers.
> I
> don't think actual pole to pole tracking is that critical for musical
> applications.