Article View: sci.electronics
Article #8838Re: Do Halogen lamps need ballasts?
From: Robert Wier
Date: Sun, 09 Dec 1990 21:18
Date: Sun, 09 Dec 1990 21:18
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All of this talk about Halogen lights and possible destruction
thereof make me wonder if similar technology is being applied
to transmitting tubes (and maybe CRTs?). I know from talking
to broadcast engineers that you only have a matter of seconds
to shut off a 25,000 watt transmitting tube if the cooling
fans fail. In fact we have a very nice EMAC tube upstairs in
the electronics lab (4CX5000 I believe) that got destructed just
this way. The cooling fins (made of some type of metal) are
MELTED.
The tungston re-deposition properties of halogen lamps would seem
a natural for life extension on transmitting tubes (IF that is
a desired property - maybe not for the manufacturers :-) )
or would the presence of grids, plates, and other elements
negate the use of halogen?
- Bob Wier
-------------- insert favorite standard disclaimers here ----------
College of Engineering
Northern Arizona University / Flagstaff, Arizona
Internet: rrw@naucse.cse.nau.edu | BITNET: WIER@NAUVAX | WB5KXH
or uucp: ...arizona!naucse!rrw
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!elroy.jpl.nasa.gov!ncar!noao!arizona!naucse!rrw From: rrw@naucse.cse.nau.edu (Robert Wier) Newsgroups: sci.electronics Subject: Re: Do Halogen lamps need ballasts? Message-ID: <3026@naucse.cse.nau.edu> Date: 9 Dec 90 21:18:40 GMT References: <FISH.90Nov28100429@his.gemed.com> <1990Dec3.183744.9175@xrtll.uucp> Organization: Northern Arizona University, Flagstaff AZ Lines: 26