From: utzoo!decvax!sultan!dag Newsgroups: net.micro Title: Re: early fan-noise summary Article-I.D.: sultan.134 Posted: Mon Feb 7 21:33:05 1983 Received: Sat Feb 12 03:02:25 1983 References: decvax.414 Fan noise is one thing, but the flyback transformer whine bothers some more than others. There are some of us who for some reason or another have been "Blessed" with the ability to hear well above the normal audible frequencies. To us, those ultrasonic alarm systems are not only audible, they are painful. So are low cost (and some expensive) color televisions, video terminals, and though I can't figure out why, modems. Maybe someone should work on a way to make a CRT that does not require an audible flyback transformer. I for one don't watch color television (or much B&W for that matter) and boycot stores that have ultrasonic alarm systems running during business hours. (Some wealthy highschools in Ohio have those systems - but that's a story for net.flame.) Does anyone out there know of such work going on? Daniel Glasser ...!decvax!sultan!dag