Re: What's taters?

On Wed, 16 Nov 2005 19:35:30 -0800, Brooks Moses wrote:

> Wilson Heydt wrote:
>> Ooohhh....is the cycle counting ligic vacuum tubes, too?
>> (The simplest way to make an accurate electric or electronic clock
>> is to let the power company do the hard part. If you can count AC
>> cycles, just divide by appropriate numbers and--voila!--you have a
>> clock.)
>
> And, if you have it compare the output to a better clock, you can use it
> to tell whether the power company's generators are running over or under
> their rated load! :)

The clock groups have tested this to destruction :)

In the UK, it tends to be accurate to a cycle over a given 24 hour period,
but up to thirty displayed seconds advanced or retarded at any particular
time.

We've come up with all sorts of complex tweaks; for example, calibrating a
crystal across a 24 hour or longer period via the mains and using that as
the primary reference.

Neil
.

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