Electricity has been around for quite a while now. I'm not fond of working
on vacuum tube stuff because it's (to me, anyway) an ancient technology. Of
course, other techs are thoroughly familiar with it and have no problem
restoring tube radios built in the 1940's.

The oldest thing I've ever tried to fix is an A****er-Kent radio receiver.
I don't know when it was built but it had some ANCIENT vacuum tubes, all of
which had the heater filaments open. I didn't even try to replace them or
go any farther with it. I'd say it could have been made in the 1920's.

But there are lots of older items out there, some of which may still be in
constant use, such as motors in industrial applications that are
non-critical (such as ventilation fans).

What's the oldest electrical/electronic item you've worked on?

Just curious.

Matt J. McCullar, KJ5BA
Arlington, TX