Thermal Stress in K2, K3 and I guess KX3

Posted by John Huggins, kx4o on May 30, 2011; 10:10pm
URL: http://elecraft.85.s1.nabble.com/Thermal-Stress-in-K2-K3-and-I-guess-KX3-tp6420735.html

All,

Has anyone seen any degradation or temporary non-operation in the QRP
versions of the K2 or K3 while operating in hot conditions?  Symptoms
might include:

- gradual loss in output power
- gradual increase in output power
- controls stop working due to some processor lockup
- unexpected receiver bandwidth changes
- frequency drift (although what doesn't drift a little)
- any other change that returns to normal upon return to normal temps

This question works the other way too.  Has anyone seen the above during
very cold operation?

As for the KX3, has the thermal analysis highlighted any stress point(s)?

Thanks.

John, kx4o
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