Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!rochester!rutgers!att!whuts!sw From: sw@whuts.ATT.COM (WARMINK) Newsgroups: sci.space Subject: Re: GEOS-6 dies. Summary: Light bulb? Message-ID: <5352@whuts.ATT.COM> Date: 9 Feb 89 15:01:36 GMT References: <14215@cup.portal.com> <1989Feb9.013228.965@utzoo.uucp> Organization: AT&T Bell Laboratories, Whippany NJ Lines: 13 In article <1989Feb9.013228.965@utzoo.uucp>, henry@utzoo.uucp (Henry Spencer) writes: > As I recall, it's part of a sensor that encodes the position of rotating > parts in the satellite's scanner system. Those bulbs are a notorious > reliability problem that is being designed out of more recent satellites; There must be a good reason why LEDs weren't used - 6 years plus isn't that long ago...anybody know why not? -- ------------------------------------------------------------------------------ "PENTAGON OFFICIALS ARE CONCERNED ABOUT | Stuart Warmink, Interface Systems AN ANTIMATTER SHORTAGE" ("WHAT'S NEW") | whuts!sw Whippany NJ USA -----------> My opinions are not necessarily those of my employer <-----------