Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+a\s+common\s+topic\s+here\s+tspa\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+a\s+common\s+topic\s+here\s+tspa\s*$/: 39 ]

Total 39 documents matching your query.

21. Re: [Amps] a common topic here tspa (score: 1): Author: "Joe Subich, K4IK" <k4ik@subich.com>; Date: Thu, 7 Apr 2005 08:42:30 -0400; The discussions we had related to bad design in general and not to any specific test fixtures they may have designed. I would, however, expected them to have designed the first test fixtures using a; /archives//html/Amps/2005-04/msg00138.html (9,558 bytes)
22. Re: [Amps] a common topic here tspa (score: 1): Author: R.Measures <r@somis.org>; Date: Thu, 7 Apr 2005 10:11:38 -0700; Eimac's Reid Brandon told Paul Pagel, the *QST* Technical Topics Editor, that Mr. Willis B. Foote was not authorized to release the information on the finding about gold-sputtering in the 8877 during; /archives//html/Amps/2005-04/msg00143.html (10,635 bytes)
23. Re: [Amps] a common topic here tspa (score: 1): Author: R.Measures <r@somis.org>; Date: Thu, 7 Apr 2005 10:59:17 -0700; My investigation of the 2, 8875 amplifier turned up something odd -- i. e., both VHF parasitic suppressor resistors appeared to be in mint condition, yet they had increased in R by factors of over 4x; /archives//html/Amps/2005-04/msg00144.html (11,123 bytes)
24. Re: [Amps] a common topic here tspa (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 07 Apr 2005 13:58:25 -0400; What is the boiling point of molten gold in vacuum? I assume it is lower in vacuum as with any liquid in a vacuum. It may be even more complex than that! 73 Bill wa4lav ______________________________; /archives//html/Amps/2005-04/msg00145.html (11,792 bytes)
25. Re: [Amps] a common topic here tspa (score: 1): Author: R.Measures <r@somis.org>; Date: Thu, 7 Apr 2005 16:26:15 -0700; The boiling point of anything in a vacuum is lower, but I do not know how much lower it is for gold. In any case, it would still be above the melting point of 1063ºC. cheers, Bill Richard L. Mea; /archives//html/Amps/2005-04/msg00148.html (12,534 bytes)
26. Re: [Amps] a common topic here tspa (score: 1): Author: "Steve Thompson" <g8gsq@ic24.net>; Date: Fri, 8 Apr 2005 07:35:12 +0100; Can gold leave the grid structure if it's molten but not boiling? Steve _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listi; /archives//html/Amps/2005-04/msg00152.html (9,151 bytes)
27. Re: [Amps] a common topic here tspa (score: 1): Author: Ian White G3SEK <G3SEK@ifwtech.co.uk>; Date: Fri, 8 Apr 2005 08:37:37 +0100; Basically, yes - just like water (molten ice) will eventually evaporate completely away at room temperature. Everything has a vapour pressure, which increases with temperature. However, the rate of e; /archives//html/Amps/2005-04/msg00155.html (10,463 bytes)
28. Re: [Amps] a common topic here tspa (score: 1): Author: Steve Thompson <g8gsq@ic24.net>; Date: Fri, 8 Apr 2005 10:22:48 +0100; And flow? And get pulled from the surface by anode potential? Steve _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/; /archives//html/Amps/2005-04/msg00156.html (9,355 bytes)
29. Re: [Amps] a common topic here tspa (score: 1): Author: Richard Measures <r@somis.org>; Date: Fri, 8 Apr 2005 03:46:02 -0700; Probably, but a moderate number of gold melt-balls lodge onto the cathode. Rich Measures, 805.386.3734, AG6K, www.somis.org _______________________________________________ Amps mailing list Amps@cont; /archives//html/Amps/2005-04/msg00161.html (9,821 bytes)
30. Re: [Amps] a common topic here tspa (score: 1): Author: Richard Measures <r@somis.org>; Date: Fri, 8 Apr 2005 04:01:04 -0700; ( By leaving the grid at a high enough rate to be attracted to each other by universal gravitation and form into spheres before they radiation-cool below 1063ºC and solidify. To me, the most not; /archives//html/Amps/2005-04/msg00162.html (11,860 bytes)
31. Re: [Amps] a common topic here tspa (score: 1): Author: Richard Measures <r@somis.org>; Date: Fri, 8 Apr 2005 04:15:04 -0700; Apparently, Steve, but I usually see some gold craters along with bared patches of molybdneum, which indicates there was some boiling going on at the time. To me, this suggests that the process was r; /archives//html/Amps/2005-04/msg00164.html (9,562 bytes)
32. Re: [Amps] a common topic here tspa (score: 1): Author: Steve Thompson <g8gsq@ic24.net>; Date: Fri, 8 Apr 2005 12:15:00 +0100; Could they get there after the anode voltage is removed? Steve _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2005-04/msg00165.html (10,279 bytes)
33. Re: [Amps] a common topic here tspa (score: 1): Author: Richard Measures <r@somis.org>; Date: Fri, 8 Apr 2005 04:43:33 -0700; My impression is that the molten state of a gold melt-ball is rather brief since, in earth's gravity field, they accelerate downward at a rate of 1G, and I have yet to see any splattered gold during; /archives//html/Amps/2005-04/msg00166.html (11,040 bytes)
34. Re: [Amps] a common topic here tspa (score: 1): Author: Chris Pedder <chris@g3vbl.co.uk>; Date: Fri, 08 Apr 2005 11:48:11 +0100; Newton, were he still alive, might be 'surprised' by this 'explanation'. Chris _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailma; /archives//html/Amps/2005-04/msg00167.html (9,396 bytes)
35. Re: [Amps] a common topic here tspa (score: 1): Author: Richard Measures <r@somis.org>; Date: Fri, 8 Apr 2005 06:19:06 -0700; Universal gravitation was understood by Copernicus and Galileo. Rich Measures, 805.386.3734, AG6K, www.somis.org _______________________________________________ Amps mailing list Amps@contesting.com; /archives//html/Amps/2005-04/msg00170.html (10,266 bytes)
36. Re: [Amps] a common topic here tspa (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Fri, 08 Apr 2005 09:15:52 -0400; Gold , lead and solder are very compatible. You can solder to gold in fact solder will dissolve gold just as it does silver. However, I suspect gold does not like to stick to molybdenum ( like solder; /archives//html/Amps/2005-04/msg00172.html (13,311 bytes)
37. Re: [Amps] a common topic here tspa (score: 1): Author: "Joe Subich, K4IK" <k4ik@subich.com>; Date: Fri, 8 Apr 2005 09:38:44 -0400; Some of the 8877 team were still with Eimac in late 1988 - early 1989. The MLA2500 (I had one for several years) is particularly bad for grid overheating not necessarily due to parasitic oscillation; /archives//html/Amps/2005-04/msg00174.html (10,968 bytes)
38. Re: [Amps] a common topic here tspa (score: 1): Author: "Joe Subich, K4IK" <k4ik@subich.com>; Date: Fri, 8 Apr 2005 17:39:57 -0400; No fooling - and exactly what I've been saying. However, that is not the only reasonable explanation for grid overheating, particularly in a tube known for running excessive grid current when over d; /archives//html/Amps/2005-04/msg00191.html (10,646 bytes)
39. Re: [Amps] a common topic here tspa (score: 1): Author: Richard Measures <r@somis.org>; Date: Fri, 8 Apr 2005 18:30:09 -0700; Over driving with even 200w could not heat the grid to the temp needed to sputter gold. I have autopsied a number gold-sputtered 8877s that were driven with 100w radios. Eimac was the first source of; /archives//html/Amps/2005-04/msg00195.html (12,195 bytes)

Current List: 21 - 39
Page: [1] [2]