Regarding the VFO jumping, it may be as simple as dried &
thick grease.     If the VFO jumps a couple of hundred
cycles especially just after making an adjustment, or
doesn't seem to stay where you put it, that may be your
problem.    I can't begin to count the number of TR7 and RV7
VFO's for that problem.    The cure is to remove all the old
grease and repack the bearing and lubricate sparingly.
Be prepared to do a VFO alignment after you reassemble the
tuning assembly.
 
Ron / WB4HFN
 
 

  _____  

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Sent: Tuesday, January 01, 2008 6:01 PM
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Subject: Re: [drakelist] RV7 jumping frequency


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As an addendum, I've experienced such problems on several
rigs due to a 

ground connection that was intermittant, going high
resistance, etc.




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