[sdiy] Re: Hertz Wars !

[John L Marshall]

Edison was the DC guy. George Westinghouse was the AC guy. Borrowed the idea
from Tesla.

60 Hz corresponds with 3600 rpm. Generators turn at some sub-multiple of
3600 rpm, in the USA, depending on the number of poles.

50 Hz corresponds with 3000 rpm. Rest of World.

There were industrial areas of Los Angeles where power was distributed at 25
Hz.

Some airplanes and ships use 400 Hz. Small size.

Take care,
John
---------------------------------------------------------------------------
Pacific Northwest DIY Synthesizer meeting, July 20, 2002
See: www.sound-photo.com
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----- Original Message -----
From: "Tim Parkhurst" <tparkhurst at siliconbandwidth.com>
To: <harrybissell at prodigy.net>; <ka4hjh at gte.net>;
<synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, July 30, 2002 5:37 PM
Subject: RE: [sdiy] Re: Hertz Wars !


> Actually, I've always wondered about the 50Hz mains. I can see 60Hz
because
> you get one cycle per second, but who first came up with 50Hz? And why? Is
> this another epic tale of battle between Edison and Tesla?
>
> Just curious. Answers are limited to 50 words or less (60 words or less if
> you live in a country with 60Hz utilities).  ;)
>
> Tim Servo
> ***********************
>
>
> -----Original Message-----
> From: harrybissell at prodigy.net [mailto:harrybissell at prodigy.net]
> Sent: Tuesday, July 30, 2002 4:29 PM
> To: ka4hjh at gte.net; synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] Re: Hertz Wars !
>
> Nah come on Terry...
>
> I'm not touting the sonic merits of 60Hz over 50Hz....
>
> just that 60hz is better, thats all. It allows you to use
> smaller filter caps for the same ripple, does not throw a
> magnetic field as far through a metal shield, and the higher
> frequency is easier to attenuate in oh, lets say... one of
> those noisy Oberheim Matrix 1000 power supplies.
>
> The guys in the UK just don't like it that the colonies are
> one up on them... ;^P
>
> H^) harry
>
>
>
>
>
>
> (for newbies - please do not take this post seriously !)
>
>
>
> >>Neil Johnson wrote:
> >>
> >>>
> >>
> >>> Ah, the sweet, sweet 50Hz hum of a powerstation in action :)
> >>
> >>NO....  60Hz    ;^P
> >>
> >>H^) harry    (from the colonies....)
> >OK, we've had OS wars, platform wars, manufacturer wars, politics in
> >general and even flame-war wars, but I'll be DAMNED if I'm going to put
up
> >with that "which sounds better, 50 or 60Hz?" crap. I think anyone
starting
> >that crap up should be banned permanently from this list. It's a bunch of
> >crap and I'm not putting up with any crap.
> >And speaking of crap, why do they call it taking a crap instead of
leaving
> >one??
> >--
> >Terry Bowman, KA4HJH
> >"The Mac Doctor"
> >"If I can't be God I don't want to play"--Aleister Crowley
>
>
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