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Total 102 documents matching your query.

61. Re: [Amps] Ameritron Amps (score: 1): Author: Doug Renwick <ve5ra@sasktel.net>; Date: Sun, 30 Jul 2006 19:31:07 -0600; Tom, Thanks for the very level headed answer. Without knowing all the facts it is very easy to come to the wrong conclusion as many do. There are too many 'arm chair quarterbacks' on this and other r; /archives//html/Amps/2006-07/msg01408.html (12,871 bytes)
62. Re: [Amps] Ameritron Amps (score: 1): Author: Doug Renwick <ve5ra@sasktel.net>; Date: Sun, 30 Jul 2006 19:31:07 -0600; Fred Hammond built amps before Viewstar. I dont remember the model but, George, VE3FXT, took one to Fiji in 1983. It was a single tube 3-500Z. It sure ran hot; we had the case off, not the cover, to; /archives//html/Amps/2006-07/msg01409.html (9,471 bytes)
63. Re: [Amps] Ameritron Amps (score: 1): Author: Bill Turner <dezrat@copper.net>; Date: Sun, 30 Jul 2006 19:01:22 -0700; ORIGINAL MESSAGE: -- REPLY SEPARATOR -- This statement makes no sense. I was ticked off *before* you slowed the blower, not after. The amp I had was early production before the duty cycle derating. W; /archives//html/Amps/2006-07/msg01410.html (9,303 bytes)
64. Re: [Amps] Ameritron Amps (score: 1): Author: mike kendall <ke6cvh@yahoo.com>; Date: Sun, 30 Jul 2006 20:53:24 -0700 (PDT); Doug, I really hope you are not (but I think you are) implying that I am not level headed as I have been very careful about my wording about MFJ (Ameritron) but I guess it doesn't matter any more so; /archives//html/Amps/2006-07/msg01412.html (17,628 bytes)
65. Re: [Amps] Ameritron Amps (score: 1): Author: R L Measures <r@somis.org>; Date: Sun, 30 Jul 2006 13:27:31 -0700; Early 1991. R L MEASURES, AG6K. 805-386-3734 r@somis.org _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-07/msg01413.html (9,988 bytes)
66. Re: [Amps] Ameritron Amps (score: 1): Author: R L Measures <r@somis.org>; Date: Sun, 30 Jul 2006 13:36:04 -0700; So why didn't the entire envelope melt, Mr. Rauch? correct. The symptoms sounded familiar. Why is the 7034 (glass anode insulator) rated at 150MHz when the guts are good for 500MHz? Correct, Tom. The; /archives//html/Amps/2006-07/msg01414.html (11,034 bytes)
67. Re: [Amps] Ameritron Amps (score: 1): Author: R L Measures <r@somis.org>; Date: Sun, 30 Jul 2006 20:59:19 -0700; I don't know. However, probably around the time that the 15E came out. R L MEASURES, AG6K. 805-386-3734 r@somis.org _______________________________________________ Amps mailing list Amps@contesting.c; /archives//html/Amps/2006-07/msg01415.html (10,337 bytes)
68. Re: [Amps] Ameritron Amps (score: 1): Author: "Phil Clements" <philc@texascellnet.com>; Date: Mon, 31 Jul 2006 02:11:38 -0500; Mike, I have used my Ameritron QSK-5 for several years with my Icom 706MKII and my Henry SS-750 solid state amp; both mobile and here in the shack. They have performed flawlessly. If I ever buy anot; /archives//html/Amps/2006-07/msg01418.html (10,203 bytes)
69. Re: [Amps] Ameritron Amps (score: 1): Author: Steve Thompson <g8gsq@eltac.co.uk>; Date: Mon, 31 Jul 2006 09:01:26 +0100; Isn't that about 25 years before 3-500Z was introduced? In the 40s they were making lots of devices running high power at high VHF/low UHF so they must have had good enough glass. I think 3-500Z was; /archives//html/Amps/2006-07/msg01419.html (10,710 bytes)
70. Re: [Amps] Ameritron Amps (score: 1): Author: Steve Thompson <g8gsq@eltac.co.uk>; Date: Mon, 31 Jul 2006 09:26:13 +0100; Please ignore my previous post - just realised I misinterpreted Rich's reply. I still don't believe in glass that's ok at 30MHz but duff at 100odd though. Steve ______________________________________; /archives//html/Amps/2006-07/msg01420.html (8,652 bytes)
71. Re: [Amps] Ameritron Amps (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Mon, 31 Jul 2006 05:41:34 -0400; We can read it, but we should be aware it isn't correct. I'm not sure if MFJ is buying 2000 hour MTBF caps or not, but the 2000 hour number is NOT the expected mean time hours before failure in oper; /archives//html/Amps/2006-07/msg01421.html (13,936 bytes)
72. Re: [Amps] Ameritron Amps (score: 1): Author: pegasus@mho.net; Date: Mon, 31 Jul 2006 04:46:33 -0600 (MDT); I agree on the QSK-5, excellent product... While 3 Ameritron amps I've had all had some parasitic problems, (that were easily remedied) the worst problem I've had with the QSK-5 was a blown lamp fuse; /archives//html/Amps/2006-07/msg01423.html (11,029 bytes)
73. Re: [Amps] Ameritron Amps (score: 1): Author: mike kendall <ke6cvh@yahoo.com>; Date: Mon, 31 Jul 2006 05:38:14 -0700 (PDT); Tom, http://www.cde.com/tech/CDE_Lytic_Reliability.pdf First let me say I think you are a great guy and I've read your posts before, you seem to really want to mentor people. Doug calling me an armch; /archives//html/Amps/2006-07/msg01428.html (17,657 bytes)
74. Re: [Amps] Ameritron Amps (score: 1): Author: "k7fm" <k7fm@teleport.com>; Date: Mon, 31 Jul 2006 06:09:13 -0700; Rich asked: "So why didn't the entire envelope melt, Mr. Rauch?" A hole lets the imprisoned vacuum out. Strangely, at that point, the heat goes away also. That stops the meltdown. Sort of like a fuse; /archives//html/Amps/2006-07/msg01429.html (9,394 bytes)
75. Re: [Amps] Ameritron Amps (score: 1): Author: mike kendall <ke6cvh@yahoo.com>; Date: Mon, 31 Jul 2006 06:46:24 -0700 (PDT); Rich, I wish my buddy's Ameritron and my own first Ameritron had caps that were working until we were 6ft under. In my buddy's case, the caps failed 4 times before the factory got it working again be; /archives//html/Amps/2006-07/msg01431.html (10,058 bytes)
76. Re: [Amps] Ameritron Amps (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 31 Jul 2006 06:19:18 -0700; Pretty close, Steve. The 15E was developed by Eimac in 1940 for use in the AN/APS-18 radar set. Agreed, but the Chinese apparently had no knowledge of how to make low D-factor glass, so it took some; /archives//html/Amps/2006-07/msg01433.html (12,802 bytes)
77. Re: [Amps] Ameritron Amps (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 31 Jul 2006 06:25:56 -0700; good point, Tom. IOW, at room temp the caps are going to be going strong when the operator is 6-feet under. R L MEASURES, AG6K. 805-386-3734 r@somis.org ______________________________________________; /archives//html/Amps/2006-07/msg01434.html (10,807 bytes)
78. Re: [Amps] Ameritron Amps (score: 1): Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>; Date: Mon, 31 Jul 2006 17:09:39 +0200 (CEST); boron as a fluxing agent instead of lead.< Going back a few years, I remember reading that the 24G, 35T and 35TG had envelopes of something called 'Nonex' glass, which had a greenish tinge. Those tub; /archives//html/Amps/2006-07/msg01436.html (8,770 bytes)
79. Re: [Amps] Ameritron Amps (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Mon, 31 Jul 2006 11:27:04 -0400; The factory should have been smart enough to tell your buddy to check the resistors first Mike. That's their fault. The best capacitor in the world would have failed the same way with bad resistors.; /archives//html/Amps/2006-07/msg01438.html (9,386 bytes)
80. Re: [Amps] Ameritron Amps (score: 1): Author: Steve Thompson <g8gsq@eltac.co.uk>; Date: Mon, 31 Jul 2006 18:38:47 +0100; Sounds very complicated. A bit of reactance in the load line is all that's needed to get dissipation up. Given that the circuit has to come up with 360deg of phase shift somewhere in order to oscilla; /archives//html/Amps/2006-07/msg01442.html (10,281 bytes)

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