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From: heskett@titan.tsd.arlut.utexas.edu (Donald Heskett)
Newsgroups: sci.electronics
Subject: Re: Sidereal Time Clock
Message-ID: <HESKETT.90Dec18124918@polymnia.titan.tsd.arlut.utexas.edu>
Date: 18 Dec 90 18:49:17 GMT
References: <billq.661025394@s.ms.uky.edu> <1833@umriscc.isc.umr.edu>
	<3023@lamont.ldgo.columbia.edu> <4391@alliant.Alliant.COM>
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In-reply-to: f@Alliant.COM's message of 17 Dec 90 21:59:36 GMT

I'm not a "watch resonator expert" but I believe that polishing the
resonator to alter the frequency of the timepiece is not viable.
Unless I'm mistaken, the resonators are quartz crystals with
electrodes plated onto parallel faces. The biggest problem, I'm
guessing, would be restoring the electrode on the crystal face you
ground down.

Why make life difficult? Custom crystals are relatively cheap as are
the components to divide the frequency down to near 60hz.