A blind ham here uses a conventional style voltmeter to measure the same
thing as the meters do.
It converts voltawge to audio tones.
He built it from a Bob Gunderson article 30 years ago. I've seen more
recent articles or catalog stuff, but can't recall where.  I hope that
this at least jogs more minds for you.

Douglas R Hunsinger wrote:
>
> I know this isn't computer related, but it is a technology question.  Does
> anyone know if there is a SWR meter that can be used by blind people?  If
> so, who sells it? Thanks in advance.

--
Will; K2LB  <[log in to unmask]>