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Re: [RTTY] noise

To: Roy Morgan <roy.morgan@nist.gov>,"Glenn Wyant" <va3dx@sympatico.ca>, <rtty@contesting.com>
Subject: Re: [RTTY] noise
From: Bill Turner <dezrat1242@ispwest.com>
Date: Mon, 09 Jan 2006 07:56:20 -0800
List-post: <mailto:rtty@contesting.com>
ORIGINAL MESSAGE:

At 06:50 AM 1/9/2006, Roy Morgan wrote:

>I can imagine that if such a diode was breaking down in reverse mode, it
>would make a lot of hash.
>
>Roy


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

That's true, but even in the forward conduction mode diodes generate 
hash because of the sharp leading edge of the current when they turn 
on. Most of the time we don't see this because power supply filter 
caps remove it, but in a lamp where there are no filters at all, it 
could be pretty bad.

Bill, W6WRT

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