[Elecraft] Re:K2/100 Frequency Stability

[WA9GQT@aol.com]

       I  have done the latest BFO stability modification BFOMDKT.  This did 
a great job in reducing the K2 QRP drift.  Now we have introduced more heat 
and need a way to control the temperature so this modification really means 
something.  
       Again, I would like to suggest air openings in the KPA100 top cover 
panel so the K2 has a definite air flow from rear thru these openings. It 
seems that this trapped heat has to be removed in order for any drift mod to 
be a success. I am hopeful that we can find some way to decrease this drift 
we are seeing.  I don't think I am being a perfectionist , just critcal of 
more drift than necessary.  
       When I get time this week, I am going to remove the top cover panel 
and operate without it to see how much drift I have then.  I will report back 
later. 

73 & Seasons Greetings

Rod Koch  WA9GQT   K2 #1900  KPA100 



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