[R-390] Stiff Tuning on R-390A / R-390A progress

[ToddRoberts2001@aol.com]

 If the tuning feels very "stiff" on the R-390A you might check to make sure 
the bushing where the tuning shaft comes thru the front panel is not binding 
against the shaft. The bushings were made to be adjustable by loosening the 
large nut on the backside of the bushing assembly. Over the years I have run 
across several R-390A radios that had this problem of very stiff tuning when 
turning the Kilocycle knob. In every case a misaligned front-panel bushing 
was the cause. I suspect that was one of the reasons  the radios I have were 
put up for sale! Also make sure the shaft has lubrication where it comes thru 
the bushing. 73 Todd Roberts WD4NGG.