[Hammarlund] HQ-170 OSCILLATOR STABILITY
Magoo
magoo at isp.ca
Mon Aug 28 12:14:01 EDT 2006
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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