Article View: sci.electronics
Article #9750Re: Question about Vacuum Tubes.
From: Masahiro Kitagawa
Date: Sat, 26 Jan 1991 15:03
Date: Sat, 26 Jan 1991 15:03
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1697 bytes
In article <36147@netnews.upenn.edu> krikori@eniac.seas.upenn.edu (Raffi Krikorian ) writes:
| Does anyone know of a case(s) where someone was injured while using
|a vacuum tube amplifier?
^^^^^^^^^^^^^^^^^^^^^
If high power amplifiers in broadcast or ham radio stations are
included, sure enough, there have been many injured and dead, as the
plate voltages are ranging from KV to 10 KV. I heard the engineer at
the radio station in Saipan Is. was dead about ten years ago by the
accident.
I had built several high power amplifiers for ham radio and lab
experiments in my school days. Fortunately I am still alive. But I
will use Power MOS FETs next time as they need only 150 V to make KW.
As for audio amplifiers and radio receivers, the plate voltages are
usually hundreds volts and not so fatal unless your hands are wet or
sweat.
Anyway, be careful !
*--- **** ***-- *--* *-* *-*
Masahiro Kitagawa
NTT Research Labs. Tokyo Japan
kitagawa@will.ntt.jp
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<17660136@hpfcdj.HP.COM> <CKN+#9$@irie.ais.org> <1991Jan11.051423.16498@athena.cs.uga.edu> <1991Jan12.014729.12808@portia.Stanford.EDU> <36147@netnews.upenn.edu>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!ccut!s.u-tokyo!rkna50!nttlab!siva!will!kitagawa From: kitagawa@will.ntt.jp (Masahiro Kitagawa) Newsgroups: sci.electronics,rec.ham-radio Subject: Re: Question about Vacuum Tubes. Message-ID: <13652@will.ntt.JP> Date: 26 Jan 91 15:03:26 GMT References: <17660136@hpfcdj.HP.COM> <CKN+#9$@irie.ais.org> <1991Jan11.051423.16498@athena.cs.uga.edu> <1991Jan12.014729.12808@portia.Stanford.EDU> <36147@netnews.upenn.edu> Sender: kitagawa@will.ntt.JP Followup-To: sci.electronics Organization: NTT Basic Research Labs., Tokyo, Japan Lines: 26 In-reply-to: krikori@eniac.seas.upenn.edu's message of 23 Jan 91 17:11:57 GMT