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81. [AMPS] High-SWR protection (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sun, 29 Oct 2000 14:02:09 -0500; The RF Applications VFD wattmeter, though not inexpensive itself, has an inexpensive option for unkeying the amplifier as soon as it senses SWR above an adjustable limit. The company also makes (or a; /archives//html/Amps/2000-10/msg00659.html (9,499 bytes)
82. [AMPS] Opinions (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 01 Sep 2000 14:33:38 +0000; limits amps. Also any faults you may know of with the brands I mention, contruction, tube disadvantages, switching, transformers, etc. I have from time to time asked opinions personally from a couple; /archives//html/Amps/2000-09/msg00012.html (7,730 bytes)
83. [AMPS] Blown TL922A... What to do? (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 08 Sep 2000 06:53:30 -0400; Thank you, Peter! At last the discussion moves forward. Given how long any given TL-922 may have been around, it seems entirely plausible to me that the suppressor resistors would have changed value; /archives//html/Amps/2000-09/msg00274.html (10,364 bytes)
84. [AMPS] Alpha (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 11 Sep 2000 03:24:04 -0400; This sounds like a job for the patch - Nichrome CQ (tm) 73, Pete Smith N4ZR Contesting is ... Extreme Radio The World Contest Station Database is back up and running at http://www.qsl.net/n4zr -- FAQ; /archives//html/Amps/2000-09/msg00444.html (7,330 bytes)
85. [AMPS] Re: Big Mutha Soldering Iron (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Tue, 12 Sep 2000 14:53:07 -0400; Amen. Mine doesn't have THAT problem, but the trigger switch has been flakey since it came out of the shrinkwrap, and it's very slow to heat up. My Weller 8200 140-watt iron is much better for PL-259; /archives//html/Amps/2000-09/msg00558.html (7,512 bytes)
86. [AMPS] Amp Pi Network Behavior (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 15 Sep 2000 09:44:29 -0400; This is a real simple question, I suspect. When I operate my SB-220 into a dummy load on 40M, the loading capacitor is at approximately mid-scale. The dummy, a cantenna, measures about 1.04 SWR on my; /archives//html/Amps/2000-09/msg00762.html (7,888 bytes)
87. [AMPS] wanted SB 220 bandswitch (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 25 Sep 2000 09:41:53 -0400; standard capacitor? The detent spring is fairly soft, but the main reason is a triumph of aesthetics over ergonomics -- the three knobs in question on the SB-220 are all exactly the same. A simple fi; /archives//html/Amps/2000-09/msg00982.html (8,581 bytes)
88. [AMPS] RE:30L1/30S1 tuning (was: linearizing linears) (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Tue, 26 Sep 2000 10:22:35 -0400; Yes, indeed. Can any of the Collins aficionados out there affirm just how the 30S1/30L1 "tune" system works? I can remember tuning a 30L1 by the book, and being told to dip with the Tune cap and then; /archives//html/Amps/2000-09/msg01029.html (10,522 bytes)
89. [AMPS] Watt meters (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Tue, 26 Sep 2000 17:21:41 -0400; Jim, I'd wait. The VFD is definitely worth it. It's simply wonderful to be able to tune your amp with a string of dots, have the wattmeter follow it, and all with the ergonomic ease of the led bar gr; /archives//html/Amps/2000-09/msg01068.html (8,451 bytes)
90. [AMPS] Relays hanging up (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sat, 12 Aug 2000 11:25:25 +0000; It puzzles me that we don't seem more of these problems with remote antenna switches, where you're receiving through contacts that must also be able to handle transmitting power. 73, Pete Smith N4ZR; /archives//html/Amps/2000-08/msg00225.html (9,362 bytes)
91. [AMPS] info (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sun, 13 Aug 2000 18:14:03 +0000; Fortunately, Eudora simply captured it as the "sig" but did not let it execute as a script -- which seems to be uniquely an Outlook problem. McAfee had to be told to scan files with .ht* extensions a; /archives//html/Amps/2000-08/msg00272.html (7,865 bytes)
92. [AMPS] Buy/Sell (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Tue, 06 Jun 2000 12:01:03 +0000; I can't help noticing that there's one member of this reflector whose traffic consists almost entirely of items offered for sale. Maybe I'm showing my Internet age, but I thought it was understood th; /archives//html/Amps/2000-06/msg00032.html (7,656 bytes)
93. [AMPS] Buy/Sell (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Tue, 06 Jun 2000 15:11:58 +0000; items I would add that I have no problems with wants, or with for sale ads placed by people who also ask technical questions, or assist others. It's the unremitting stream of sales pitches that gets; /archives//html/Amps/2000-06/msg00037.html (8,265 bytes)
94. [AMPS] Things that make you mad! (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sun, 11 Jun 2000 14:56:47 +0000; Not normally a pollyanna, but isn't it possible they were anticipating a price change by their supplier, but did not yet know what the new cost to them would be? 73, Pete Smith N4ZR n4zr@contesting.c; /archives//html/Amps/2000-06/msg00099.html (7,752 bytes)
95. [AMPS] Commander 2500E (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Thu, 15 Jun 2000 01:19:43 +0000; I'm confused -- how is the Henry 8K legal, then? 73, Pete Smith N4ZR n4zr@contesting.com -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: am; /archives//html/Amps/2000-06/msg00187.html (8,601 bytes)
96. [AMPS] Tubes in Oil (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Wed, 21 Jun 2000 21:39:26 +0000; If I remember correctly, the issue is with large quantities of this stuff (Polychlorinated biphenyls, I think the full term is -- PCBs in any case) in the environment and with what happens to it thro; /archives//html/Amps/2000-06/msg00310.html (7,987 bytes)
97. [AMPS] exciter to amp coax length (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 10 Mar 2000 13:11:30 +0000; certain length of coax between the KWM2 and 30L1 amplifier. As the following anecdote may illustrate, this isn't just ancient history. I hope this story helps someone else troubleshoot a similar pro; /archives//html/Amps/2000-03/msg00535.html (8,425 bytes)
98. [AMPS] exciter to amp coax length (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 10 Mar 2000 14:44:58 +0000; Sure, and in this case the original indicated input SWR was more like 1.5:1 than 1:1, hence the length of feedline mattered. I'd still like to know why a higher indicated SWR (on the TS-930) translat; /archives//html/Amps/2000-03/msg00542.html (8,224 bytes)
99. [AMPS] Rocky Point effects (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Wed, 15 Mar 2000 15:11:10 -0500; They redden quite nicely with normal bias and relatively fast CW in the SSB position. Perhaps our motto should be "Contesting prevents gas!" 73, Pete N4ZR Don't forget to update your entry in the Wor; /archives//html/Amps/2000-03/msg00711.html (9,440 bytes)
100. [AMPS] Dentron MLA 2500 Amplifier?++ (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 17 Mar 2000 20:30:05 +0000; Awww.. why not. IMO, to start things off: Low$ -- 3-500Z All-out -- 3CX1200 I've never really understood why the 8877 and 3CX800 are so much more popular than the 3CX1200, given its instant-on chara; /archives//html/Amps/2000-03/msg00777.html (9,080 bytes)

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