[Hammarlund] Dead band with HQ-170

[Cecil Acuff]

Brian,

Sounds like the Local Oscillator is not running on 80.  Did you try 
adjusting the main tuning up to the top end of the band and see if it don't 
start somewhere along the way.  You can scope the oscillator through a 
coupling cap and see if it's running or not.  Don't have the manual in front 
of me at the moment but it should not be too hard to figure out where...Hit 
the plate of the Osc tube with maybe a .001 @ 600vdc cap in series.  Look at 
a band that works first and then drop down to the one that don't and 
compare.

Cecil...
----- Original Message ----- 
From: "Brian Roberts" <k9vky at earthlink.net>
To: <Hammarlund at mailman.qth.net>
Sent: Thursday, December 02, 2004 5:38 PM
Subject: [Hammarlund] Dead band with HQ-170


> Hello Gents:  I have an HQ-170 that works fine on all bands except for 80 
> meters.  The band switches are all clean, the coils have continuity 
> through them, but no signals on 80 meters ONLY.  Has anyone had a similar 
> experience with the HQ-170, or can anyone aim me in the right direction 
> for finding the problem.  Thanks.  Brian.     k9vky at arrl.net
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