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Article #11618Re: VCR rewind and tape head question
From: David E A Wilson
Date: Sat, 03 Oct 1992 07:14
Date: Sat, 03 Oct 1992 07:14
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lihan@ccwf.cc.utexas.edu (Bruce G. Bostwick) writes: >VCR's ALWAYS rewind and fast-forward with the tape retracted into the >cassette -- the guideposts and head surfaces are highly polished and >would be damaged very quickly if this were not done. (Also, the >loaded tape path is rather convoluted and friction would be >excessive.) Even if they did not, the tape would be rendered >unplayable long before the heads were damaged. I think this should be qualified. Any VCR with a real time counter rather than a non-linear spool rev counter must pass the tape by at least one head at all times - otherwise it would loose track of time when rw/ff (unless it records absolute time stamps rather than counting frames). -- David Wilson (042) 21 3802 voice, (042) 21 3262 fax Dept Comp Sci, Uni of Wollongong david@cs.uow.edu.au
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<1992Oct3.071432.17133@cs.uow.edu.au>Path:
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!europa.asd.contel.com!darwin.sura.net!wupost!uwm.edu!rpi!batcomputer!munnari.oz.au!sol.deakin.OZ.AU!cs.uow.edu.au!david From: david@cs.uow.edu.au (David E A Wilson) Subject: Re: VCR rewind and tape head question Message-ID: <1992Oct3.071432.17133@cs.uow.edu.au> Organization: Dept of Computer Science, Wollongong University, Australia References: <1992Sep24.031152.20380@nmsu.edu> <1728@necis.UUCP> <80677@ut-emx.uucp> Date: Sat, 3 Oct 1992 07:14:32 GMT Lines: 15