Wanted: schematic of (quartz) thermostat on the web
Peter L. Peres email (remove spam text)
On Sun, 8 Nov 1998, Dave VanHorn wrote:
> Your power line is at least that accurate, if not more. They tweak the
> generator speed by hand, so that in the long term, it's dead on to wwv.
Historically perhaps. Nowadays the hand has no body behind it, and it has
a legend that says 'IBM' on the side, or something like that.
> In the short term though, it could be dramatically off.
Not really. In a modern country-wide coordinated network operating within
its normal specs all you get is phase slip, else the whole shebang goes to
hell very quickly.
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See also: www.piclist.com/techref/index.htm?key=schematic+quartz
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