[R-390] Xtal Question

[Dennis McLaughlin]

Barry,

The one in the calibrator/oven is a CR-27/U type.  Crystal specs are at 
75 deg C and it should be operating at this temperature or the frequency 
will be off..  The ones in the crystal oscillator chassis are CR-36A/U 
type.  Speced at room temperature.  Some one on the list had the MIL 
specs in pdf format on their web site.

Dennis McLaughlin

Barry Hauser wrote:
> Hi Gang
> 
> Can anybody tell me -- is the 17 MC xtal in the calibrator/oven 
> interchangeable with the one in the xtal osc. deck, or is some parameter 
> different?  I think they're the same standard mounting style.
> 
> Barry
> 
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