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From: myers@hpfcrlm.HP.COM (Bob Myers)
Newsgroups: sci.electronics
Subject: Re: Japanese Equipment in USA
Message-ID: <17660173@hpfcrlm.HP.COM>
Date: 18 Jun 91 18:08:35 GMT
References: <JIM.91Jun10093326@fuji.eng.Yale.edu>
Organization: Hewlett Packard -- Fort Collins, CO
Lines: 21

>>the answer to this depends on where in Japan he's coming from;
>>the line frequency for Tokyo/Yokohama and *north* is 60 Hz. For the southern
>>part of Japan - south of a line across Honshu, roughly east-west just south
>>of Yokohama - it's 50 Hz.  Believe it or don't!

>Don't believe that!     Just opposite.     We use 50Hz in eastern Japan
>including Tokyo and Yokohama, and 60Hz in western Japan including Osaka, etc.

Thanks for the correction!  It's been a while since I had to worry about
such things, so I probably should've checked to make sure I hadn't gotten
turned around - which, apparently, I had.

Looks like my geography is a little rusty, too - but for some reason, I
always think of Honshu as oriented mainly north-south, while the Japanese
(who should know, after all) consider it more east-west.  (The map says
sorta NE-SW, so you pays your dime and you takes your choice, I guess.)


Bob Myers            | "There's no sense in being precise when you don't even
myers%hpfcla@hplabs. |  know what you're talking about." 
hp.com               |                        - John von Neumann