On Fri, 11 Jul 2003 19:28:23 -0400, " Uncle Peter"
wrote:

Some early commercial broadcast FM transmitters used very low
fundamental crystal frequencies; the large frequency mulitplication
was needed to produce the relatively wide FM deviation.

Pete

"Frank Dresser" wrote in message
...
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.
If it is in a can with an octal base, it is probably in an 'oven',
which means very hight stability.