In Southern California Edison's region I know that 60Hz used as a time 
reference has been unstable in possibly the last 10+ years.  I have found that 
depending on whether in the summer clocks which use this reference tend to run 
slower, and in the winter they run faster.

Have you noticed that in some way it between running fast or slow the gain/loss 
combination averages out over the course of the year?

>
I just check our test board on once a year - haven't been paying attention to 
local variations.

Have to get my old analog master power station Warren Type "B" working - to get 
a better idea.





Don Resor
Thomas D. Erb
p:        508-359-4396
f:        508-359-4482
a:        97 West Street, Medfield, MA 02052 USA
e:         [email protected]
w:        www.electrictime.com
Tower & Street Clocks Since 1928

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