Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA Path: utzoo!linus!decvax!ucbvax!ucdavis!lll-crg!seismo!brl-tgr!gwyn From: gwyn@brl-tgr.ARPA (Doug Gwyn ) Newsgroups: net.med,net.info-terms Subject: Re: VDT's and eyes. Message-ID: <1260@brl-tgr.ARPA> Date: Mon, 6-Jan-86 05:41:36 EST Article-I.D.: brl-tgr.1260 Posted: Mon Jan 6 05:41:36 1986 Date-Received: Tue, 7-Jan-86 06:32:42 EST References: <341@weitek.UUCP> <642@ttrdc.UUCP> <755@brl-tgr.ARPA> Organization: Ballistic Research Lab Lines: 17 Xref: linus net.med:2922 net.info-terms:325 > Speaking of Tektronix displays and color, the most amusing Tektronix > emulation I ever saw was at NYIT, on their color frame buffers. Faithful > emulation of the Tek 4014 -- including the use of light green print on a > dark green background! Don't remember if it flashed the screen when you > cleared it, though... The "tek4014" program for the DMD does; it also "double-flashes" vectors so they look like they're being drawn on an actual 4014. All this nonsense can be optionally disabled.. ----- By the way, the fellow who got headaches in the room full of burning-in monitor assemblies was probably being affected by the near-ultrasonic sound generated by the horizontal circuits (often transformer laminations vibrating). Even if he didn't consciously hear them, such whistles would lead to irritability and headaches.