[Milsurplus] puzzler - module with glass rod?

[Bob Camp]

Hi

You really need to see what’s under the bottom of the rod. Since there are no electrodes
in sight, that rules out a normal quartz resonator. The shape and size are a bit odd for a low 
frequency resonator (it would be *very* low). That moves it over into the delay line 
category. Bounce a signal off the “open” end and you have a delay. You could make
a resonator the same way, but it would be very unusual.

Bob


> On Mar 27, 2016, at 7:45 PM, Nick England <navy.radio at gmail.com> wrote:
> 
> http://www.navy-radio.com/puzzlers.htm#glass
> 
> Nick England K4NYW
> www.navy-radio.com
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