Article View: sci.electronics
Article #17659Re: info on clocks using battery backups
From: smk
Date: Thu, 18 Jun 1987 13:41
Date: Thu, 18 Jun 1987 13:41
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1237 bytes
In article <3622@cisunx.UUCP>, nf165636@cisunx.UUCP writes: > > 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. > > -- I thought that the battery backup in my alarm clock would make it a lot easier to take on vacation; after all, all I would have to do is plug it in, right? What I did find out was that any similarity between the actual time and the clock's time was purely coincidental.
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arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!rutgers!sri-spam!mordor!lll-tis!ptsfa!ihnp4!homxb!houxm!mhuxt!mhuxm!mhuxo!ulysses!sfmag!sfsup!smkReferences:
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!rutgers!sri-spam!mordor!lll-tis!ptsfa!ihnp4!homxb!houxm!mhuxt!mhuxm!mhuxo!ulysses!sfmag!sfsup!smk From: smk@sfsup.UUCP Newsgroups: sci.electronics,misc.consumers Subject: Re: info on clocks using battery backups Message-ID: <1523@sfsup.UUCP> Date: Thu, 18-Jun-87 09:41:03 EDT Article-I.D.: sfsup.1523 Posted: Thu Jun 18 09:41:03 1987 Date-Received: Sat, 20-Jun-87 07:07:52 EDT References: <3622@cisunx.UUCP> Organization: AT&T-IS, Summit N.J. USA Lines: 15 Summary: Battery backup