[sdiy] polarity switcher

[patchell]

     That all depends on if you want it to be voltage controlled or not.
Yep..an opamp and a pot and a few resistors weill do the same job.  A
multiplier will do the job without a pot.  You pay for versatility.

matti wrote:

> Why bother with such a (relatively) high-cost device? Wouldn't a simple
> opamp suffice? Perhaps with an analog switch for CV control?
>
> enjoy
>
> On Mon, 18 Mar 2002 tpaddock at seanet.com wrote:
>
> > If I understand right, an analog multiplier
> > should do it. Maybe like an AD633.
> > As a bonus, it's a ring modulator.
> >  - -- -  Toby Paddock
> >
> > > would anyone like to recommend a variable
> > > polarity-switcher circuit to add
> > > to my modular? perhaps with voltage control ?
> > >
> > > tia
> > > mark
> > >
> >
> >
>
> -
> I finally got to the toilet paper, but couldn't find the end of the roll.
> I grabbed at the paper, clawing at it, but it felt like smoke. I
> eventually managed to grab a fistful, and looking down at my hand, I
> couldn't see anything, but I knew I had the paper. Somehow. I managed to
> wipe, somehow, and while glancing down I noticed my legs had disappeared.
> Oh, no, it's ok, there they are. No, they've gone again. How the fuck am I
> supposed to wipe when my asshole keeps disappearing?

--
 -Jim
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