Hi
I own a second-hand R4-A which I seldom use with its pair T4-XB.
Being unused for some time I noticed that the R4-A lacks sensitivity on
20 metres. Perhaps on 15, too.
I used the calibrator as reference to make sure that the rx is not
completely dead. The calibrator makes the s-meter deflect to say, about
three or four S-units, on 80 m it is well above S9.
Another rig, FT-920 picks up signals equally well on 80 m band but beats
Drake on 20 m. Drake doesn't hear anything except the calibrator.
I went thru the ganged wafer switches with a cotton swab and DeOxit (red
fluid). No go. I also replaced the rf amp valve, the one with spring
loaded shield on it with no luck.
Please help me if you can. I simply love my Drake line and won't give up.
Kai Nilakari
OH3WE
Lahti, Finland
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