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61. [AMPS] Input matching experiment (score: 1): Author: jstrohm@texas.net (jstrohm@texas.net); Date: Fri, 18 Jan 2002 12:31:06 -0500; HEEHEEHEEHEE Actually, I had planned to attach the output to a TS-117 dummy load and monitor temperature rise, and feed the input with a variety of QRP HF rigs, or with a sig gen driving a broadband; /archives//html/Amps/2002-01/msg00127.html (10,013 bytes)
62. [AMPS] Input matching experiment (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Fri, 18 Jan 2002 16:35:55 -0600; I question dogmatic thinking. I question bombastic spokesmen who insist that theirs is the One True Word, Excluding All Others. And when I have a theory or line of inquiry that I can test out with a; /archives//html/Amps/2002-01/msg00132.html (9,336 bytes)
63. [AMPS] Input matching experiment (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Mon, 21 Jan 2002 22:07:59 -0600; Project update -- I'd forgotten how long it took to assemble all the pieces for an HV supply out of the junkbox. I think I need to hire a lab assistant. Anyway, I've got practically everything gather; /archives//html/Amps/2002-01/msg00159.html (9,280 bytes)
64. [AMPS] GOOD FOR A LAUGH! I can't believe this. (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Wed, 23 Jan 2002 09:10:23 -0600; "Ian Procyk" <jprocyk@telus.net> says -- http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1323785615 Uh huh. Salt spray or battery acid, maybe Drano. Then sitting on its side in the pool of goo; /archives//html/Amps/2002-01/msg00182.html (8,133 bytes)
65. [AMPS] Anode cooler question (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Sun, 27 Jan 2002 12:35:19 -0600; I was lookin' on that unnameable auction site, and found an auction for a 4-1000A anode cooler. And I thought about the last swap fest, where I scored some tubes very similar to 2C39s -- big finned e; /archives//html/Amps/2002-01/msg00203.html (9,010 bytes)
66. [AMPS] Anode cooler question (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Sun, 27 Jan 2002 13:51:50 -0600; Except for not having a bandsaw or lathe, I'm pretty well set. The drill press is easy to manage. The particular tubes I got were not 2C39s, but have a similar finned external anode. I see no set-scr; /archives//html/Amps/2002-01/msg00205.html (7,832 bytes)
67. [AMPS] found connectors but now : cable ? (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Mon, 28 Jan 2002 18:24:55 -0600; Hmm, any chance you can lure the bunny into a cavity resonator? -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com; /archives//html/Amps/2002-01/msg00239.html (8,517 bytes)
68. [AMPS] found connectors but now : cable ? (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Tue, 29 Jan 2002 08:41:21 -0600; I used to spend money on "high tension" wire for HV runs. Then I used old RG-21 and RG-213 hat looked too sad to put in the air. Then, after an embarrassing incident mixing up some patch cords (excit; /archives//html/Amps/2002-01/msg00265.html (9,074 bytes)
69. [AMPS] Shunt regulated high voltage psu (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Tue, 29 Jan 2002 18:12:24 -0600; "John Nelson" <john@steampower.demon.co.uk> wrote... Rerefences? URLs? Jim N6OTQ -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUE; /archives//html/Amps/2002-01/msg00290.html (9,708 bytes)
70. [AMPS] Shunt regulated high voltage psu (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Wed, 30 Jan 2002 12:58:31 -0600; Steve WB2WIK/6 writes -- One concern is that the smaller ceramic tubes (i.e. not "tetrodes with handles") are less forgiving than the 4-1000. Another concern is -- there's been a lot of "put up or sh; /archives//html/Amps/2002-01/msg00323.html (10,858 bytes)
71. [AMPS] Shunt regulated high voltage psu (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Wed, 30 Jan 2002 14:29:29 -0600; Hmm, I never thought of a capacitively coupled untuned input using a gimmick cap. I'll bet there may be some fun to be had aong those lines, varying the length of the gimmick and coiling it in differ; /archives//html/Amps/2002-01/msg00334.html (9,762 bytes)
72. [AMPS] Iron regulated screen supply? (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Wed, 30 Jan 2002 14:57:38 -0600; "Barry Kirkwood" <bjk@ihug.co.nz> said -- Or how about using more than one bleeder resistor on the plate supply? Ferinstance, if you're using a capacitor bank, pick your 450V source off the next to t; /archives//html/Amps/2002-01/msg00337.html (8,301 bytes)
73. [AMPS] Shunt regulated high voltage psu (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Wed, 30 Jan 2002 15:39:30 -0600; n8de@thepoint.net said -- No, no, that's not right! It's an Avanti Astroplane! 10 dB forward DC output watts gain! As measured on a Birp 34 SWR field strength meter with a California high-power banan; /archives//html/Amps/2002-01/msg00338.html (9,524 bytes)
74. [AMPS] Shunt regulated high voltage psu (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Wed, 30 Jan 2002 15:45:12 -0600; Steve Katz <stevek@jmr.com> says -- Since all CBers are rumored to use amps, I'm not sure how far off-topic we're straying here ... Steve, don't you have to choke that chicken first? Sure hope you ha; /archives//html/Amps/2002-01/msg00340.html (9,533 bytes)
75. [AMPS] Re: Bickering (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Wed, 30 Jan 2002 22:02:32 -0600; Woo woo!! I'll cobble up a deck, and you can test it for me!! Just tell me how big a power supply and how big a dummy load you have. Let's see, twin Amperex 6076in G2DAF, or quad screen-fed 8072 on a; /archives//html/Amps/2002-01/msg00357.html (8,030 bytes)
76. [AMPS] Another use for co-ax (slightly OT) (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Thu, 31 Jan 2002 02:01:10 -0600; The latest "NASA Tech Briefs" detailed a new use for coaxial cable. If you place an extremely high voltage across an unterminated length of rigid coaxial cable, plasma is generated at the end of the; /archives//html/Amps/2002-01/msg00362.html (8,918 bytes)
77. [AMPS] Porcelain Standoffs (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Thu, 31 Jan 2002 11:07:19 -0600; "Geo Clute W7LFD" <gclute@attbi.com> says -- I've heard of this but never seen it. Take a look at a porcelain standoff. You'll see it's glazed on the body, but not on the ends. The bare porcelain is; /archives//html/Amps/2002-01/msg00378.html (8,469 bytes)
78. [AMPS] AL1500 (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Wed, 5 Dec 2001 21:05:26 -0600; AG6K said ... Uhh ... without putting words in Tom's mouth ... because it was easier to blame Eimac's bum run of tubes for most of the late 1980s than to blame amplifier engineering shortcomings? Jim; /archives//html/Amps/2001-12/msg00135.html (8,715 bytes)
79. [AMPS] Re: 6m amp blocking caps (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Thu, 6 Dec 2001 20:38:49 -0600; It's _NOT_ a parallel resonance in the sense that you have a capacitive value in parallel with an inductive value. You have two non-equal lumped values in parallel. Whip out Thenevin's theorem to sol; /archives//html/Amps/2001-12/msg00152.html (9,882 bytes)
80. [AMPS] Transformer Current ratings (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Sat, 15 Dec 2001 08:21:46 -0600; Jerry Flanders <jflanders2@home.com> asks: The older ARRL handbooks used to show an estimated KVA capacity based on core cross-sectional area. There are too many variables to give a rule of thumb, ex; /archives//html/Amps/2001-12/msg00229.html (9,735 bytes)

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