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Re: [Amps] Arc distance and plasma

To: "Steven Cook" <sccook1@cox.net>, <amps@contesting.com>
Subject: Re: [Amps] Arc distance and plasma
From: "Tom W8JI" <w8ji@w8ji.com>
Date: Fri, 28 Jul 2006 21:00:45 -0400
List-post: <mailto:amps@contesting.com>
> The 3-500Z's in my TL-922 both exhibit a purple "plasma" 
> above the top of the plate inside the glass envelope.

That's almost certainly just phosphoresce in the glass. 
It's not rare to glass do that in HV tubes.

73 Tom 


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