What are you searching for?   You don't really need the optical isolator if
the VFD and computer grounds are tied together.   If you do want isolation
then almost any optical isolator will work  Even those "C" shape sensors
will do the job,  The resistor and the capacitor are essential but their
values are not critical as long as the product of the R and C adds up to
about the same.

On Sat, Apr 2, 2022 at 8:32 PM Leonardo Marsaglia <ldmarsag...@gmail.com>
wrote:

> Well, a quick search gave me ZERO results here. The only results were at
> ar.mouser.com but mouser is not established here AFAIK, it looks like
> their
> spanish site is from Mexico.
>
> El sáb, 2 abr 2022 a las 19:15, gene heskett (<ghesk...@shentel.net>)
> escribió:
>
> > On Saturday, 2 April 2022 17:14:41 EDT Andy Pugh wrote:
> > > > On 2 Apr 2022, at 04:33, Leonardo Marsaglia <ldmarsag...@gmail.com>
> > > > wrote:
> > > >
> > > > Well, I can try that but I recall we did a simple low pass filter
> > > > years ago
> > > This works, and is isolated.
> > >
> https://photos.google.com/share/AF1QipPXuj4R1h7P3oLpKCcGnfS-mFd-qO5nFPe
> > > WEY-40VKkLIfDkAhSi7m4YDPVm0JCGQ/photo/AF1QipPEONYllA-BBGWD6cOLXsSWFnCU3
> > > X27btSueFJs?key=dDNfajB5TTZDalphY2dKamtVeDdrcTRJaGZqdmZR
> >
> > And that is exactly what the doctor ordered. Thanks Andy.
> >
> > But can Leonardo src it in his reach?
> >
> > Cheers, Gene Heskett.
> > --
> > "There are four boxes to be used in defense of liberty:
> >  soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author, 1940)
> > If we desire respect for the law, we must first make the law respectable.
> >  - Louis D. Brandeis
> >
> >
> >
> >
> >
> > _______________________________________________
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> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
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-- 

Chris Albertson
Redondo Beach, California

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