Thanks in advance for your help and ideas.

 

My K3 recently started exhibiting an occasional RF power drop. It drops from
100w to sometimes 50w or 30w or lower. Then by tapping the top of the radio
it goes back to full power.

 

The SWR is stable and normal during all of this, and I verified that the
main power supply is stable during the event.

 

It seems like it is sometimes brought on by routine heating and cooling.
Like when I am running RTTY off and on.

 

Any ideas would be greatly appreciated!

 

Dean

 

 

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