[R-390] New (to me) R-390A Can't Tune SSB

[Cecil Acuff]

Tune WWV and see if the BFO will zero beat...may just be way off frequency.

Cecil..
----- Original Message ----- 
From: "Jerry Stern" <jsternmd at att.net>
To: <R-390 at mailman.qth.net>; "'Collins CCA Reflector'" 
<collins at listserve.com>
Sent: Sunday, January 31, 2010 9:16 AM
Subject: [R-390] New (to me) R-390A Can't Tune SSB


> Just got a very nice R-390A and the receiver appears very sensitive but
> I cannot tune in SSB signals. Weak or strong stations are just garbled
> as if the radio is on the wrong sideband. I have checked for any loosely
> seated tubes and the usual tapping around to see if I can find any
> microphonics or signs but to no avail.  The BFO does seem to be
> functional, at least to my ear, but I guess the problems would still be
> likely in this stage?  I will start changing tubes but would appreciate
> any other diagnostic advice.  I wouldn't bother the list for this
> question but I cannot find any way to search through the R390 archives.
>
> 73 Jerry
>
> K1JOS
>
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