"Frank Dresser" wrote in
:

I have 112.30 kc crystal and I'm curious about what it was originally
used for and what sort of equiptment it was used in. It's in a metal
can, like a short version of a 6L6, with an octal base. It's marked
GENERAL ELECTRIC as well as with the frequency and several other
numbers.

I'm vaguely aware that this band is used for some sort of maratime
purpose, but I don't know exactly what.

I hooked it to an audio generator and a scope, and it's series
resonant at more or less the marked frequency.

Frank Dresser



You'd probably be more likely to get an answer in the amateur radio groups.
Also try the boatanchors group.