SV: Re: [sdiy] Wanred (dead or alive) : Pot

[Roy J. Tellason]

On Wednesday 17 August 2005 07:49 pm, karl dalen wrote:
> 4066, 4053,4051, PWM and dead band comparators to set
> OFF position! PWM at 100Khz. Gives mix and switch
> in many possible ways! Ugh!
>
>
> KD

I was wondering a while back whether something of this sort would be 
workable...

Does anybody have any actual circuits that work along these lines?

> --- harrybissell <harrybissell at prodigy.net> skrev:
> > The center tap is the most efficient way imho.
> >
> > Any other great ideas out there ???
> >
> > H^) harry
> >
> > WeAreAs1 at aol.com wrote:
> > > In a message dated 8/16/05 7:24:53 PM, harrybissell at prodigy.net writes:
> > >
> > > << I want to do a 'center off' mixing function. Turn left, it
> > > goes left only and the right is dead. Turn right, it goes
> > > right only and the left is dead. >>
> > >
> > > These pots would be a boon for Synth DIY.  There was a similar pot in
> > > the
> >
> > old
> >
> > > EML101 modular synth -- it was used for mixing the various multimode
> > > filter taps, as I recall -- although I don't think it had a center
> > > detent.  I
> >
> > wonder
> >
> > > if there might be a way to simulate it electronically (umm, without
> > > using a handful of VCA's...)  I have seen audio mixers that had aux
> > > send pots that behaved this way.  That is, turn it CW to turn up Aux A
> > > (only), turn it CCW
> >
> > to turn
> >
> > > up Aux B (only), put it in the center to turn them both off.  It may
> > > have
> >
> > been
> >
> > > on some kind of Roland line mixer, like the M-16e or something like
> > > that.
> > >
> > > MJB