[Hallicrafters] WA0ZCW Needs Assistance - Please Read

[Duane Fischer, W8DBF]

Mike, WA0ZCW has a SR-2000. After it has warmed up for a hour, maybe more, it
will change frequency by about 100 cycles when he transmits. He has done the
usual tube checks, cleaned pots and so forth. Does anyone have a suggestion as
to the possible cause and cure for this problem?	
	
Thank you on behalf of Mike - 	
	
Duane W8DBF