Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Glass\s+envelope\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Glass\s+envelope\s*$/: 10 ]

Total 10 documents matching your query.

1. [Amps] Glass envelope (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Wed, 08 Feb 2006 00:07:28 -0300; Sorry if this is a silly question, but, which is the criteria for sizing (mainly its diameter) glass tubes envelope?. One can see a glass envelope in an 813 tube relatively near the plate electrode,; /archives//html/Amps/2006-02/msg00173.html (7,080 bytes)
2. Re: [Amps] Glass envelope (score: 1): Author: "k7fm" <k7fm@teleport.com>; Date: Tue, 7 Feb 2006 19:24:02 -0800; "Sorry if this is a silly question, but, which is the criteria for sizing (mainly its diameter) glass tubes envelope?. One can see a glass envelope in an 813 tube relatively near the plate electrode,; /archives//html/Amps/2006-02/msg00175.html (7,793 bytes)
3. Re: [Amps] Glass envelope (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Tue, 7 Feb 2006 22:33:08 -0500; It has more air. 73 Gary K4FMX _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-02/msg00176.html (7,756 bytes)
4. Re: [Amps] Glass envelope (score: 1): Author: Bill Turner <dezrat1242@ispwest.com>; Date: Tue, 07 Feb 2006 19:33:45 -0800; ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Yes. :-) 73, Bill W6WRT _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesti; /archives//html/Amps/2006-02/msg00177.html (7,233 bytes)
5. Re: [Amps] Glass envelope (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Wed, 08 Feb 2006 00:51:44 -0300; k7fm escribió: Does it still has nothing?. So it must be equal regardless inside volume. Best regards Guillermo - LU8EYW. _______________________________________________ Amps mailing list Amps; /archives//html/Amps/2006-02/msg00178.html (7,432 bytes)
6. Re: [Amps] Glass envelope (score: 1): Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>; Date: Wed, 8 Feb 2006 08:06:22 +0000; Nothing? Tubes are typically pumped down to about 1E-8mmHg, which means that the "vacuum" space of an amateur-sized transmitting tube will contain well over a million free gas molecules. -- 73 from I; /archives//html/Amps/2006-02/msg00183.html (8,212 bytes)
7. Re: [Amps] Glass envelope (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Wed, 08 Feb 2006 07:40:31 -0300; Ian White GM3SEK escribió: Well, I ignored that and simplified things also; then, after "vacuum process", and to "kill" those over a million molecules tube's manufacturer use the getter method; /archives//html/Amps/2006-02/msg00184.html (8,474 bytes)
8. Re: [Amps] Glass envelope (score: 1): Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>; Date: Wed, 8 Feb 2006 11:50:21 +0000; I don't have any specific information (so this message is also being blind-copied to a couple of people who might know better) but my impression is that the getter in transmitting tubes is mostly int; /archives//html/Amps/2006-02/msg00186.html (9,827 bytes)
9. Re: [Amps] Glass envelope (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Wed, 08 Feb 2006 08:55:00 -0500; So the question that remains for me is: What kind of gas molecules remain? Surely they are not an easily ionized gas like helium, neon or argon. Surely not oxygen (big no no); nitrogen? I would think; /archives//html/Amps/2006-02/msg00187.html (10,670 bytes)
10. Re: [Amps] Glass envelope (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Wed, 08 Feb 2006 10:49:24 -0500; The gas would be air until some surfaces oxidize during the pumping/baking process. The nice thing about carbon coated elements (particularly the filament) is that reaction oxygen produces either CO; /archives//html/Amps/2006-02/msg00190.html (13,318 bytes)

Current List: 1 - 10
Page: [1]