SV: [sdiy] Buchla vactrol-based morphing/crossfade/panning

[John Alex Hvidlykke]

Hmmm. Buchla must simply love vactrols!

Good thing for me that I just ordered a load of those things before the ban
takes effect ;-)

John

> -----Oprindelig meddelelse-----
> Fra: synth-diy-bounces at dropmix.xs4all.nl
> [mailto:synth-diy-bounces at dropmix.xs4all.nl]Pa vegne af mark verbos
> Sendt: 15. september 2009 01:31
> Til: tim102 at tstinchcombe.freeserve.co.uk
> Cc: 'sdiy DIY'
> Emne: Re: [sdiy] Buchla vactrol-based morphing/crossfade/panning
>
>
> http://www.synthfool.com/docs/Buchla/dodecaoutput.jpg
>
> This was the older way to do panning, with an opamp instead of 2
> transistors.  Using the VTL5C3/2 dual vactrol adds a bit of curve.
>   Don't ask me why he put the reverb crossfader after the pan pot,
> requiring 3 vactrols in that section...
>
> Mark
>
>
>
>
> On Sep 14, 2009, at 6:52 PM, Tim Stinchcombe wrote:
>
> > Hi list,
> >
> > I'm trying to track down the source circuits these two have come
> > from, as
> > they appear to be edited-down Buchla schematics:
> >
> > http://www.simple-answer.com/vac-crossfader.jpg
> >
> > http://www.simple-answer.com/vac-panner.jpg
> >
> > (Both from Mark Verbos's site:
> > http://www.simple-answer.com/DIY.html)
> >
> > There are similarities with the 207 mixer (at Kevin Lightner's site):
> >
> > http://www.synthfool.com/docs/Buchla/
> >
> > but I'm kind of thinking there are more Buchla circuits out there
> > doing
> > similar things with vactrols, which I'd like to find out about - can
> > anyone
> > point me in the right direction?
> >
> > Thanks in advance,
> > 	Tim
> > __________________________________________________________
> > Tim Stinchcombe
> >
> > Cheltenham, Glos, UK
> > email: tim102 at tstinchcombe.freeserve.co.uk
> > www.timstinchcombe.co.uk
> >
> >
> >
> >
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