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Article #936Re: Video out on 520 and 1040ST
From: jhs
Date: Mon, 23 Jun 1986 21:27
Date: Mon, 23 Jun 1986 21:27
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1326 bytes
If you have a 520 with RF modulator output, you should be able to add a composite output fairly easily, as the baseband input to the RF modulator is precisely the composite signal. All you have to do is bring it out, possibly with an amplifier stage if the level is not right. More likely just a switch or a parallel tap off the input to the modulator will work fine. I haven't seen the schematic, but you may also pick up some resolution on the composite output by removing a "slowdown" capacitor put in to keep the TV modulator bandwidth down. Or, you might be able to leave such a capacitor in place and pick off your signal before the slowdown circuit has affected it. Good luck. -John Sangster jhs@mitre-bedford.arpa
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!allegra!princeton!caip!nike!ucbcad!ucbvax!disunix.UUCP!jhs From: jhs@disunix.UUCP Newsgroups: net.micro.atari16 Subject: Re: Video out on 520 and 1040ST Message-ID: <8606232127.AA21999@mitre-bedford.ARPA> Date: Mon, 23-Jun-86 17:27:45 EDT Article-I.D.: mitre-be.8606232127.AA21999 Posted: Mon Jun 23 17:27:45 1986 Date-Received: Wed, 25-Jun-86 05:48:24 EDT References: <360@atari.UUcp> Sender: daemon@ucbvax.BERKELEY.EDU Organization: The MITRE Corp., Bedford, MA Lines: 15