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Total 8 documents matching your query.

1. [Amps] Arc distance and plasma (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Fri, 28 Jul 2006 10:51:44 -0400; Rather than claim I can look at a tube and magically tell what happened years ago with my magnifying glass, I thought I would add a picture of a 3-500Z under RF plasma conditions. The photos clearly; /archives//html/Amps/2006-07/msg01236.html (6,908 bytes)
2. Re: [Amps] Arc distance and plasma (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Fri, 28 Jul 2006 11:00:29 -0400; I had just gotten some odd tubes on ebay (4x-500) which were basically 4x500 tubes with a 4-400 base. I figured that they were bad but thought I'd just try them on my tube tester anyway. I lit up the; /archives//html/Amps/2006-07/msg01237.html (8,259 bytes)
3. Re: [Amps] Arc distance and plasma (score: 1): Author: "Steven Cook" <sccook1@cox.net>; Date: Fri, 28 Jul 2006 16:34:57 -0700; Tom, et al., The 3-500Z's in my TL-922 both exhibit a purple "plasma" above the top of the plate inside the glass envelope. The intensity seems to change with plate voltage (CW vs. SSB) setting. Also; /archives//html/Amps/2006-07/msg01260.html (9,008 bytes)
4. Re: [Amps] Arc distance and plasma (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Fri, 28 Jul 2006 21:00:45 -0400; That's almost certainly just phosphoresce in the glass. It's not rare to glass do that in HV tubes. 73 Tom _______________________________________________ Amps mailing list Amps@contesting.com http:; /archives//html/Amps/2006-07/msg01261.html (7,930 bytes)
5. Re: [Amps] Arc distance and plasma (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Fri, 28 Jul 2006 12:15:12 -0400; Bill, I'd say that was gassy, hi hi! I'll bet it would have lit up if plate voltage had been on it. On receiving tubes, and sweep tubes, when they've lost their evacuation generally from a crack in t; /archives//html/Amps/2006-07/msg01263.html (11,116 bytes)
6. Re: [Amps] Arc distance and plasma (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Fri, 28 Jul 2006 20:03:50 -0400; Steve, Keep in mind that there's a difference in the gas ionized you see as a purple glow and that of an arc. However, these ions go in the opposite direction of electrons in a tube, and strike the c; /archives//html/Amps/2006-07/msg01264.html (11,990 bytes)
7. Re: [Amps] Arc distance and plasma (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Fri, 28 Jul 2006 23:20:37 -0400; What Steve described is virtually always phospherense in the glass, not gas. It isn't the least bit harmful. 73 Tom _______________________________________________ Amps mailing list Amps@contesting.; /archives//html/Amps/2006-07/msg01270.html (9,405 bytes)
8. Re: [Amps] Arc distance and plasma (score: 1): Author: PA3DUV <pa3duv@planet.nl>; Date: Sat, 29 Jul 2006 17:14:55 +0200; Bill Clinton saw a purple glow AND arcs without inhaling! Cheers, Dick PA3DUV _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman; /archives//html/Amps/2006-07/msg01298.html (13,576 bytes)

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