In a message dated 12/30/03 5:24:07 PM, [EMAIL PROTECTED] writes:

>  But every once in a while I hear that storing power tubes in a cold
> climate somehow degrades them or renders them useless.
> 
All,

I remember seeing a warning somewhere a number of years ago about storing 
certain power tubes at subzero temperatures.   As I remember, the 100TH and 
250TH 
were mentioned specifically. Seems the tungsten filaments can contract and 
fracture.   Seems possible, but I have never experienced this personally and 
pass along the information for whatever it's worth.

Dennis D.   W7QHO
Glendale, CA



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