Thread: Well ....
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Wayne.B Wayne.B is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 10,492
Default Well ....
On Wed, 19 Nov 2014 16:49:49 -0500, wrote:

Servo systems on the ships were 400 hz and I am sure the air force
guys will jump in and talk about the power systems on their planes.
You know the difference right away when you touch it. You get a ring,
not a hum..

===

400 Hz systems on planes date back to the days of World War 2. It was
well understood that higher AC frequencies saved considerable weight
on power components like transformers and servos.
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