When I was a kid, I remember my dad using GI Bill money to go through
the NRI National Radio Instititute courses.

Recently I thought it might be fun to go through a modern course like
that.

Alas, NRI went out of business several years ago.

Does anyone know of any good radio/electronics correspondence courses
to take these days? I don't care at all about "accredidation[sp?]" --
it's purely for my own learning's sakes.