info on clocks using battery backups

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Article #17666

#17666

From: meyers m
Date: Tue, 16 Jun 1987 14:00

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How do the clocks (and clock radios) that run on main power (110/60 Hz)
count the time ? Especially those that use battery backups. In this case
do they use a quartz crystal ? Does that mean that these can be used
on 110/50 Hz or any other frequency ? Any info will be appreciated.

--
Michael Meyers  {allegra,bellcore,cadre,ihnp4}!pitt!cissunx!nf165636 UUCP
Comp & Inf. Systems                            cisunx!nf165636@pitt.CSNET
University of Pittsburgh    pitt!cisunx!nf165636@cadre.dsl.pittsburgh.edu
-- 
Michael Meyers  {allegra,bellcore,cadre,ihnp4}!pitt!cissunx!nf165636 UUCP
Comp & Inf. Systems                            cisunx!nf165636@pitt.CSNET
University of Pittsburgh    pitt!cisunx!nf165636@cadre.dsl.pittsburgh.edu

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rochester!pt!cadre!pitt!cisunx!nf165636
From: nf165636@cisunx.UUCP (meyers     m)
Newsgroups: sci.electronics,misc.consumers
Subject: info on clocks using battery backups
Message-ID: <3622@cisunx.UUCP>
Date: Tue, 16-Jun-87 10:00:44 EDT
Article-I.D.: cisunx.3622
Posted: Tue Jun 16 10:00:44 1987
Date-Received: Sun, 21-Jun-87 09:19:02 EDT
Organization: Univ. of Pittsburgh, Comp & Info Sys
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