[R-390] Calibration

[Rick Brashear]

Well... I have what will probably turn out to be a very novice R-390 
owner question, but since I am a novice R-390 owner I guess that's 
okay.  I have very low calibration signal on the lower bands and not a 
real good showing on the upper bands.  I am sure just the other day this 
was not the case.  I am sure I was getting as much as 3/4 meter 
indication on the carrier level meter, but it barely moves now.  I have 
done little to the receiver other than clean it up a bit and repair a 
bent meter case.  I did lay the front panel over to remove the carrier 
level meter to straighten it, however, I "think" I put everything back 
as it was.  I carefully marked the meter leads ad they are back 
correctly.  I just replaced the calibration oscillator tubes (2 - 
12AU7's) and that seemed to help a very little bit, so I doubt they 
really needed replacing since they did check good on the old Hickok 
tester.  I have run through the procedure a hundred times and I can't 
see anything I'm doing differently, so I am assuming something has gone 
south or I have gone totally insane.

....any ideas?

Rick/K5IZ