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From: jaym@nuchat.UUCP (Jay Maynard)
Newsgroups: comp.misc
Subject: Re: IBM mainframe for sale
Message-ID: <365@nuchat.UUCP>
Date: Sun, 4-Oct-87 13:21:01 EDT
Article-I.D.: nuchat.365
Posted: Sun Oct  4 13:21:01 1987
Date-Received: Wed, 7-Oct-87 06:47:28 EDT
References: <14944@watmath.waterloo.edu> <4673@nsc.nsc.com> <2944@phri.UUCP>
Organization: Public Access - Houston, Tx
Lines: 15
Summary: Not true...but almost.

In article <2944@phri.UUCP>, roy@phri.UUCP (Roy Smith) writes:
> 	But seriously, I'm curious; why?  The only other place I know where
> 400 Hz power is used is on aircraft, because you can make the power
> transformer cores lighter.

Exactly. Have you considered just *how much* a Cray (or a big-series
IBM [all of the water-cooled systems use 416 {not 400!...$^%$#} Hz power])
would weigh if they used 60 Hz power instead? Not to mention the hum from
the massive transformer cores vibrating at 60 Hz, and the energy loss...

-- 
Jay Maynard, K5ZC (@WB5BBW)...>splut!< | temporarily at uunet!nuchat!jaym
Never ascribe to malice that which can | while splut is down (@#*(&$% ST4051!!)
adequately be explained by stupidity.  | GEnie: JAYMAYNARD  CI$: 71036,1603
The opinions herein are shared by neither of my cats, much less anyone else.