[time-nuts] An interesting behavior with my Sulzer 2.5A...

[Dennis Tillman]

That sounds like normal crystal aging. See
<http://www.ieee-uffc.org/freqcontrol/quartz/vig/vigaging.htm>

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Chuck Harris
Sent: Thursday, June 05, 2008 11:21 AM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] An interesting behavior with my Sulzer 2.5A...


Hi Gang!

Being the season of thunderstorms and protracted power outages; As my UPS
quit before the power restored, I am reminded of a behavior that I have
always found curious:

When the power fails on my Sulzer 2.5A, for more than a few minutes, the
frequency takes a quick hop lower a few parts in E9.  I then get to spend a
couple of days bringing it back on frequency, and find that for the next
several month it begins a very slow climb up in frequency back to where it
was after the short interruption in power.

Any ideas on what is happening?

-Chuck Harris

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