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From: john@hpcvlo.HP.COM (John Eaton)
Newsgroups: sci.electronics
Subject: Re: 400 Hz transformers
Message-ID: <1090006@hpcvlo.HP.COM>
Date: Tue, 13-Oct-87 11:37:51 EDT
Article-I.D.: hpcvlo.1090006
Posted: Tue Oct 13 11:37:51 1987
Date-Received: Fri, 16-Oct-87 01:45:27 EDT
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Organization: Hewlett-Packard Co., Corvallis, OR, USA
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<<<
< The best win is that 400 Hz power transformers are very small.
----------
 I once worked on a military HF transmitter that could be operated off either
60 or 400 hz depending on what power supply was installed. The 60 hz supply
came in its own 19" enclosure and took two men to carry. The 400 hz model
could be held easily in one hand.

 BTW the 60 hz power used by the navy on board ships is different than what
you get from your local utilities. It comes as two hot leads balanced at 55
volts to ground instead of a hot and a neutral. You have to be careful about
what you plug into it.


John Eaton
!hplabs!hp-pcd!john