[R-390] A Little Help Needed

[2002tii]

Joe wrote:

>The set plays fairly well but the sensitivity is not where it should 
>be. I've checked the tubes and replaced all weak ones. The 
>sensitivity is better on the higher bands. For example, I just 
>listened to Radio Bulgaria. It came in just OK on 9.7 mhz but very 
>strong on 11.7 mhz. The carrier meter deflects only slightly even on 
>strong signals.

That, in itself, is not a useful test.  One band may be propagating 
much better than the other, or your antenna may be much better on one 
band than the other.  My first suggestion would be to do a full 
mechanical alignment, then see where you stand.  You will certainly 
learn a bunch about the radio that way.

Best regards,

Don