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Total 8 documents matching your query.

1. [AMPS] Vacuum Variable voltage rating (score: 1): Author: shr@ricc.net (W0UN--Signal Hill Ranch); Date: Thu, 12 Apr 2001 10:52:36 -0600; You can get a good idea of the vacuum by just grabbing the drive mechanism and seeing you can pull it straight out. The same as reducing the capacitance but without turning the screw. A bad vacuum w; /archives//html/Amps/2001-04/msg00273.html (7,951 bytes)
2. [AMPS] Vacuum Variable voltage rating (score: 1): Author: kimba@sprint.ca (Bert Barry); Date: Thu, 12 Apr 2001 15:40:59 -0400; It will depend on the cross-section area of the shaft. (Think about it). Anyway, 95 percent of atmospheric pressure is hardly a vacuum at all! Bert, VE3QAA -- FAQ on WWW: http://www.contesting.com/F; /archives//html/Amps/2001-04/msg00276.html (7,895 bytes)
3. [AMPS] Vacuum Variable voltage rating (score: 1): Author: 2@vc.net (measures); Date: Thu, 12 Apr 2001 12:52:26 -0700; good point. 95% of atmospheric pressure is bad news. cheers, Bert, - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting; /archives//html/Amps/2001-04/msg00278.html (7,417 bytes)
4. [AMPS] Vacuum Variable voltage rating (score: 1): Author: Wlfuqu00@pop.uky.edu (William Fuqua); Date: Thu, 12 Apr 2001 16:14:36 -0400; The at 1 mm of Hg the breakdown voltage is quite a bit less that at atmospheric pressure 760mm. You could not tell the difference for a perfect vacuum and 1 mm by pulling on the shaft. 73 Bill wa4lav; /archives//html/Amps/2001-04/msg00279.html (6,974 bytes)
5. [AMPS] Vacuum Variable voltage rating (score: 1): Author: shr@ricc.net (W0UN--Signal Hill Ranch); Date: Thu, 12 Apr 2001 14:36:38 -0600; It is not the shaft area but the area of the bellows that is important. Most caps have a larger insert that is drilled and tapped for a 1/4 inch shaft. The air leaks around the shaft and around the i; /archives//html/Amps/2001-04/msg00280.html (9,166 bytes)
6. [AMPS] Vacuum Variable voltage rating (score: 1): Author: 2@vc.net (measures); Date: Thu, 12 Apr 2001 16:47:44 -0700; good point, Bill - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contest; /archives//html/Amps/2001-04/msg00284.html (6,945 bytes)
7. [AMPS] Vacuum Variable voltage rating (score: 1): Author: shr@ricc.net (W0UN--Signal Hill Ranch); Date: Fri, 13 Apr 2001 06:29:55 -0600; The leaks I have seen (maybe a dozen out of the 100+ vacuum caps I own) have all been due to failures in the bellows as far as I can tell. Don't know if it is harder on the bellows to store them at; /archives//html/Amps/2001-04/msg00295.html (8,964 bytes)
8. [AMPS] Vacuum Variable voltage rating (score: 1): Author: kimba@sprint.ca (Bert Barry); Date: Fri, 13 Apr 2001 11:16:22 -0400; Interesting point, since I suppose vacuum caps are of ten stored for years. Have you ever checked if Jennings recommends one or the other? Interesting. I have encountered the same situation; a vacuum; /archives//html/Amps/2001-04/msg00299.html (8,266 bytes)

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