[Milsurplus] puzzler - module with glass rod?

[Peter Gottlieb]

Could it be quartz or some other material?  Looks like RF circuits, so I'm 
thinking resonator or delay or something.


On 3/27/2016 7:45 PM, Nick England wrote:
> http://www.navy-radio.com/puzzlers.htm#glass
>
> Nick England K4NYW
> www.navy-radio.com <http://www.navy-radio.com>
>
>
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