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41. [AMPS] parasitic suppressors (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 8 Dec 97 19:14:51 -0800; ...... Contamination inside an 8877? ..... ... ... When one sees gold blisters, it seems likely that boiling took place. ... ... According to Stephan's Law, far more joules than are available from th; /archives//html/Amps/1997-12/msg00165.html (11,607 bytes)
42. [AMPS] parasitic suppressors (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 8 Dec 97 19:14:56 -0800; - Does it seem likely that Rich would put his finger on a #16 gauge wire carrying15a at 28MHz? I was talking about 15A DC. Where would the average guy see 15A of 28MHz current in a VHF suppressor? I; /archives//html/Amps/1997-12/msg00166.html (11,689 bytes)
43. [AMPS] parasitic suppressors (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 8 Dec 97 19:15:08 -0800; snip...... This was Mr. Rauch's position during the grate parasitics debate, however, he never produced a reference. - I do not believe that it's possible the gold with the output from a typical tra; /archives//html/Amps/1997-12/msg00168.html (10,418 bytes)
44. [AMPS] parasitic suppressors (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Tue, 9 Dec 1997 07:49:04 +0000; All you know for sure from the photograph is - quite literally - that "The cathode coating is flaking off, the gold plating is not." That is ALL you know for sure. The evidence is not sufficient to p; /archives//html/Amps/1997-12/msg00175.html (10,618 bytes)
45. [AMPS] parasitic suppressors (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 9 Dec 97 07:02:07 -0800; For an 8874, the rated drive is 27w. The drive level for the tube in the photograph had been c. 100w. {Drake T4xc driving a pair of 8874s} A grid/cathode short eventually occured. If 100w drive shor; /archives//html/Amps/1997-12/msg00178.html (10,884 bytes)
46. [AMPS] parasitic suppressors (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Tue, 9 Dec 1997 17:17:07 +0000; Quite so: I see the microscope photographs, but I see no parasitics :-) (Sorry, Rich, that was a cheap shot but I just couldn't resist!) 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice'; /archives//html/Amps/1997-12/msg00184.html (9,644 bytes)
47. [AMPS] parasitic suppressors (score: 1): Author: km1h@juno.com (km1h @ juno.com); Date: Wed, 10 Dec 1997 11:30:16 EST; The actual ratings of RG58A/U is 650W at 10 MHz not 10M. At 50 MHz it is 250W. But that has nothing to do with the discussion. You must have been taking dancing lessons from another..... Why dont you; /archives//html/Amps/1997-12/msg00199.html (15,177 bytes)
48. [AMPS] parasitic suppressors (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 10 Dec 97 15:52:09 -0800; I did the math. I don't need to try Cold Fusion to know that it's a delusion. - 1A at 28Mhz in #16 gauge Cu,, generating serious heat? Give us a break. And besides that, if Ls was cookin' Rs, it wou; /archives//html/Amps/1997-12/msg00202.html (13,413 bytes)
49. [AMPS] parasitic suppressors (score: 1): Author: km1h@juno.com (km1h @ juno.com); Date: Wed, 10 Dec 1997 20:40:23 EST; Congrats That is a pure 100% cop -out Rich. Do the test before you whine about it please. I suspect that you really do not understand RF Damped Ringing....is this a new phrase for you....haven't hear; /archives//html/Amps/1997-12/msg00205.html (14,697 bytes)
50. [AMPS] parasitic suppressors (score: 1): Author: measures@vc.net (Rich Measures); Date: Thu, 11 Dec 97 03:02:22 -0800; - 1A at 28mHz in #16ga is not significant. I would not say that 1A at 28mHz in #16ga is a serious source of heat. ... ... ... When DC current is pulsed through an L-C circuit, damped ringing occurs; /archives//html/Amps/1997-12/msg00208.html (10,600 bytes)
51. [AMPS] parasitic suppressors (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Thu, 11 Dec 1997 07:25:28 +0000; Let's try to stay with detailed circuit analysis, and not fall back to vague arguments based on "lots of RF around". Rich is obviously correct in saying that the bias zener is not in the path of a su; /archives//html/Amps/1997-12/msg00211.html (10,117 bytes)
52. [AMPS] parasitic suppressors (score: 1): Author: philk5pc@connect.net (Phil Clements); Date: Thu, 11 Dec 1997 09:05:31 -0600; To: <amps@contesting.com> several that permanently energy during represent glitch Joules measuring devised a four Joules from resistor fuses are trial and It is Of course, successfully fault is -- FA; /archives//html/Amps/1997-12/msg00212.html (13,482 bytes)
53. [AMPS] parasitic suppressors (score: 1): Author: km1h@juno.com (km1h @ juno.com); Date: Thu, 11 Dec 1997 10:28:44 EST; I would love to if you would be so kind to tell me exactly what transpires during a Big Bang internal gas arc Ian. After all these months there have been nothing BUT vague comments. As far as my comm; /archives//html/Amps/1997-12/msg00214.html (12,792 bytes)
54. [AMPS] parasitic suppressors (score: 1): Author: measures@vc.net (Rich Measures); Date: Thu, 11 Dec 97 08:29:13 -0800; p[[[[[[[0000000000000000000000000000000000000000000000000000000000000000000 To: <amps@contesting.com> 000000000000000000000000>>Date: Thu, 11 Dec 1997 09:07:15 Bias zeners also blow in amplifiers wit; /archives//html/Amps/1997-12/msg00216.html (11,347 bytes)
55. [AMPS] parasitic suppressors (score: 1): Author: philk5pc@connect.net (Phil Clements); Date: Thu, 11 Dec 1997 10:45:05 -0600; The paper is unsigned. I got it along with a stack of Eimac Service Bulletins. I got them from Reid Brandon. You might ask him who wrote the paper. It did state that the voltage involved in the glitc; /archives//html/Amps/1997-12/msg00217.html (10,388 bytes)
56. [AMPS] parasitic suppressors (score: 1): Author: measures@vc.net (Rich Measures); Date: Thu, 11 Dec 97 09:09:32 -0800; ... ... ... What if there is a 'big bang' in an amplifier whose grids are grounded: the zener bias diode shorts, one tube is kaput, however, -- {Twilight Zone theme} --the vacuum checks normal yet w; /archives//html/Amps/1997-12/msg00220.html (9,417 bytes)
57. [AMPS] parasitic suppressors (score: 1): Author: measures@vc.net (Rich Measures); Date: Thu, 11 Dec 97 10:13:31 -0800; ... ... ... Interesting. This is the fellow who seemed to be unaware of the QST articles on parasitics. (pages 72 -75 of 9/94 QST} - After I telephoned Eimac and was told that a certain ex-employee; /archives//html/Amps/1997-12/msg00222.html (11,284 bytes)
58. [AMPS] parasitic suppressors (score: 1): Author: philk5pc@connect.net (Phil Clements); Date: Thu, 11 Dec 1997 14:40:19 -0600; Mr. Brandon's title on his letter to me of 9/26/95 listed him as "applications engineer". Eimac does not mention gas as a player in an internal arc in a tube. They define an arc as "a self-sustained; /archives//html/Amps/1997-12/msg00226.html (13,388 bytes)
59. [AMPS] parasitic suppressors (score: 1): Author: measures@vc.net (Rich Measures); Date: Thu, 11 Dec 97 13:15:27 -0800; ... ... As I understand it, the applications engineer works in the marketing dept., not in the engineering department. . . I wonder if Mr. Brandon knows anything about Mr. Rauch's mysterious "Mr. XX; /archives//html/Amps/1997-12/msg00228.html (10,053 bytes)
60. [AMPS] parasitic suppressors (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Thu, 11 Dec 1997 22:10:22 +0000; km1h @ juno.com wrote (replying to me): Sorry, Carl, I didn't mean that to come across as flippant. I was just trying to encourage everybody not to back away into generalities when things become hard; /archives//html/Amps/1997-12/msg00230.html (10,273 bytes)

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