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Re: [Amps] Zero Crossing circuit

To: amps@contesting.com
Subject: Re: [Amps] Zero Crossing circuit
From: "Ken Warren" <Ken_Warren@beavton.k12.or.us>
Date: Wed, 17 Nov 2004 14:12:39 -0800
List-post: <mailto:amps@contesting.com>
I tried a zero crossing controller in a 750 volt power supply prior to
running it on the 3KV plate supply and my experience was that the
laminations in the transformer made so much noise that it was not usable.
The audio from the modulator caused the laminations to act as a speaker
and it was loud enough to cause feedback. The transformer did have well
sealed laminations. I would like to know if others have tried this also
with the same result

Ken Warren K7RPX

Ed Stallman <n5blz1@houston.rr.com> writes:
>Wondering if anyone has used a zero crossing circuit on a high voltage
>supply to reduce inrush current at startup? would this work for soft start
>or would it just assist?
>Ed N5BLZ
>
>
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