Xref: utzoo rec.photo:2275 rec.video:3253 sci.electronics:2703 Path: utzoo!mnetor!uunet!husc6!think!bloom-beacon!mit-eddie!uw-beaver!cornell!batcomputer!itsgw!imagine!pawl17.pawl.rpi.edu!snyderw From: snyderw@pawl17.pawl.rpi.edu (Wilson P. Snyder II) Newsgroups: rec.photo,rec.video,sci.electronics Subject: Re: Video inversion (build w/ chips, cheap sources of) Message-ID: <620@imagine.PAWL.RPI.EDU> Date: 5 Apr 88 14:22:21 GMT References: <637@nunki.usc.edu> Sender: news@imagine.PAWL.RPI.EDU Reply-To: snyderw@pawl17.pawl.rpi.edu (Wilson P. Snyder II) Distribution: na Organization: RPI Public Access Workstation Lab - Troy, NY Lines: 26 Keywords: chips, cheap boxes In article <637@nunki.usc.edu> cyamamot@nunki.usc.edu (Cliff Yamamoto) writes: > This circuit that I'm trying to build seems so simple, I'm surprised I >can't find anything on it. I'm interested in building (or locating a cheap >source of) video inverters. I've been searching through my IC ref books, but >most of the chips I see are for TV's and the like. All I want it to do is >take a 75-ohm NTSC video signal w/ negative sync, invert the picture portion >on the signal while keeping all the sync, color burst, etc. intact, then >output it. Essentially I'd like to use my color negatives and move them to >video by camera but invert all the color/luminance values. >-------------------- >Clifford K. Yamamoto >ARPA: cyamamot%nunki.usc.edu@oberon.usc.edu >UUCP: cit-vax!oberon.usc.edu!cyamamot@nunki.usc.edu >CSNET: cyamamot%nunki.usc.edu@relay.cs.net Several months ago "Radio-Electronics" had the plans for a project that did this and much more, a video-effects generator. It should not be hard to delete sone of the extranious stuff you do not need. Sorry I don't have the date (was 1987 or 1988 issue.) ______________________________________________________________________ Wilson P. Snyder II beowulf!lunge!snyderw@steinmez.UUCP 318 Crockett Hall, RPI (uunet!steinmez!bewulf!lunge!snyderw) Troy, NY 12180-3590 518-276-2764, 802-658-3799 in summer ______________________________________________________________________