Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 (Tek) 9/28/84 based on 9/17/84; site tekcrl.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!mtuxo!mtunh!mtung!mtunf!ariel!vax135!cornell!uw-beaver!tektronix!tekcrl!terryl From: terryl@tekcrl.UUCP () Newsgroups: net.video Subject: Re: counters on VCRS Message-ID: <174@tekcrl.UUCP> Date: Mon, 24-Jun-85 04:22:29 EDT Article-I.D.: tekcrl.174 Posted: Mon Jun 24 04:22:29 1985 Date-Received: Wed, 26-Jun-85 06:37:45 EDT References: <433@zinfandel.UUCP>, <1346@hammer.UUCP> Lines: 21 >>I recently purchased a Fisher stereo VHS VCR. In general, I am very happy >>with its performance, but I've noticed the record-leng's oimer is non-linear. >> >>In other words, a half-hour recording at the begining of the tape is not >>equivalent in counter-units to a half-hour recording at the middle or end >>of the tape. (as the tape rolls, the counter units are longer with respect >>to time). >> >>Is this normal? >That's what happens when the tape counter runs off the spool drive. >As the tape runs, the diameter of the spool of tape changes, and >the spool rpms change. *Real* VCRs, like the Sony SL-2700, run >the tape counter off the signals recorded on the tape. The tape >counter reads in hours/minutes/seconds, and is *correct*. I doubt >if any VHS machines do this, since the tape has to come off the >head for fast-wind, and you couldn't pick up the timing signals. Yep, that's the only way to do it, using the timing signals on the tape. My NEC Beta Hi-Fi also has a REAL TIME COUNTER. Kinda handy to mark time indexes on the tape to say where something starts/stops.