[Hammarlund] HQ-170 OSCILLATOR STABILITY

[Larry Harrison]

Bill,
I have an HQ-170A with the same problem only mine takes over 8 hours to stop 
drifting. If you find the problem I hope you will post it on the reflector. 
I have not really pursued the drift problem yet, will tackle it when I get 
some other projects finished.
73,
Larry K3JRR

----- Original Message ----- 
From: "Magoo" <magoo at isp.ca>
To: <hammarlund at mailman.qth.net>
Sent: Monday, August 28, 2006 16:14
Subject: [Hammarlund] HQ-170 OSCILLATOR STABILITY


>I just aligned an HQ-170 and found that it took about 4 hours for the 
>frequency drift to stop.  This after replacing the 6C4 oscillator and doing 
>the VR tube mod.  Any HQ-170 owners have the same experience?  My 75A-4 
>settles down to the calibrated settings after about 1/2 hour, and even my 
>S-40 and HQ-129X settle out after about 45 minutes to an hour.
>
> Bill, VE3NH
>
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