I wrote a series for qst years ago, I think it was in 1987 and 1988, but
I'm not sure. The first article I wrote was in the July issue called the
squawker which was a little circuit and a photocell using a 555 chip. The
series was called amateur radio and the blind, I may have text of these
somewhere.
73
Butch Bussen
wa0vjr
open Node 3148
Las Vegas