[Hammarlund] HQ 170 alignment

[Cecil Acuff]

Lou,

        I remember a posting a couple of years back about a problem with the 
published procedure for the 60 kc alignment.  I don't remember the specifics 
but do remember there is a problem.  Seems there was some fine print or info 
in a block on the schematic that contradicted the written process but was 
correct.  I would search the archives.  I'll give it a try if I find some 
time this evening.

But a partial answer to your question is that the procedure as written in 
the manual is flawed.

Cecil Acuff
----- Original Message ----- 
From: "lou de beer" <lou.de.beer at general-net.com>
To: <hammarlund at mailman.qth.net>
Sent: Friday, December 10, 2004 12:04 PM
Subject: [Hammarlund] HQ 170 alignment


I have a HQ 170 that iam trying to align..The procedure in the manual 
doesn't seem to work For example for the 60khz IF alignment the procedure 
calls for connecting the VTVM to pin 7 of V13..The schematic shows this to 
be the grid of the BFO..Even with the VTVM connected to pin 2(correct pin i 
believe).The VTVM shows 0.0 voltage with the sig gen output of 60khz....The 
AVC is off as per instructions..Has anyone aligned the receiver?

Lou..
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