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

[harrybissell]

I'm trying to do a little guitar stompbox.  So most VCA or other schemes
would be tough.  The 4053 could easily be used if I had a way to switch it.
Could use a dual pot... one section for the actual attenuation, one to
select the switch.   Crude, but effective.   It would ultimately make for a much
larger circuit than the pots.  I need five of them (three with center taps).

Maybe I will find an angel inverstor and make a production run. Any suggestions
for a company name ???

BBD enterprises ???   :^P

H^) harry

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
> --- 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
> >
> >