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References: [ +from:jtml@lanl.gov: 562 ]

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181. [AMPS] YU181 idea (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Wed, 29 Sep 1999 10:04:38 -0600; I agree, class C for CW is fine, or D or E. Use a suitable network for harmonic attenuation of course. And C should make QSK fine, as remove drive, the amp quits amplifying. But you need to drive it; /archives//html/Amps/1999-09/msg00315.html (8,472 bytes)
182. [AMPS] RF power measurement (score: 1): Author: jtml@lanl.gov (John Lyles); Date: Mon, 2 Aug 1999 09:55:55 -0600; One more comment about accurate power monitoring. If its a CW level, then a laboratory grade power meter such as HP437 or the newer models, is recommended. One that has been calibrated to factory spe; /archives//html/Amps/1999-08/msg00026.html (8,104 bytes)
183. [AMPS] info needed (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Fri, 2 Jul 1999 10:22:19 -0600; I am looking for info about the Collins 618S1, AM only version, HF transceiver, listed in the new Fair Radio catalog. Does anyone know the tube complement, is it high level plate modulated or what? I; /archives//html/Amps/1999-07/msg00015.html (6,674 bytes)
184. [AMPS] series HV stacked rectifiers (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Tue, 6 Jul 1999 11:49:30 -0600; Sometimes it helps to remind ourselves why HV stacks have RC compensation (besides the obvious DC voltage division problem related to unequal leakage and tempco in the diodes). And reading these also; /archives//html/Amps/1999-07/msg00110.html (13,704 bytes)
185. [AMPS] more HV rectifers (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Wed, 7 Jul 1999 12:35:48 -0600; To: <amps@contesting.com> A month or two ago, I submitted a long list to the AMPS mailing list, of stick rectifier stacks. Maybe you missed it. Here is the archive on the web to read it. http://www.c; /archives//html/Amps/1999-07/msg00127.html (10,087 bytes)
186. [AMPS] low power on a 10,000D (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Fri, 9 Jul 1999 10:44:53 -0600; I am confused reading this: What exactly is 'well down on power'? I assume that a 10,000D would be able to supply 10-15 kW easily in broadcast service. In amateur service, wouldn't it be OK if it wou; /archives//html/Amps/1999-07/msg00158.html (8,064 bytes)
187. [AMPS] tube needed (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Wed, 14 Jul 1999 09:08:34 -0600; Does anyone know where to find a planar triode, Y-847, from former Eimac-Salt Lake City production. Its a cylindrical ceramic/metal or glass/metal HV switchtube, rated for very high voltage. 73 John; /archives//html/Amps/1999-07/msg00280.html (6,818 bytes)
188. No subject (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Tue, 20 Jul 1999 10:40:00 -0600; To: <amps@contesting.com> Sorry Bill, oddly enough, the CSPH18 or anything close to that with 18 in the name, doesn't exist in my Semtech catalog which is dated 1995. Give them a call at (805) 498 21; /archives//html/Amps/1999-07/msg00378.html (8,152 bytes)
189. [AMPS] accuracy of speed, power (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Thu, 29 Jul 1999 11:41:41 -0600; To: <amps@contesting.com> The way I ensure that my speedometer is close to mr policemans, is to use the Kustom SR10 K band (24 GHz) moving car radar set I picked up (hamfest). It allows you to read e; /archives//html/Amps/1999-07/msg00626.html (10,210 bytes)
190. [AMPS] resonant choke experiences (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Tue, 1 Jun 1999 11:05:37 -0600; I read the comments from Peter, Tom, and Rich. I agree that to play it safe, one could either: avoid the configuration entirely, or move the resonance off of the power line frequency. I also have to; /archives//html/Amps/1999-06/msg00009.html (9,784 bytes)
191. No subject (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Wed, 16 Jun 1999 11:54:42 -0600; Filament rheostats, the 100 Watt Ohmite variety, are still used in some tube broadcast transmitters, as they can and do limit the inrush current a bit, and they are cheap and about as reliable as a '; /archives//html/Amps/1999-06/msg00477.html (6,927 bytes)
192. [AMPS] tubes with holes in them (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Wed, 16 Jun 1999 12:03:49 -0600; I saw this happen in an old Gates 1 KW MW transmitter, in which the 807 driver stage was direct coupled to the 833 final, and the driver cathode current in turn, set up the final current (or it may h; /archives//html/Amps/1999-06/msg00478.html (8,059 bytes)
193. [AMPS] cavity parasitic suppressors (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Wed, 16 Jun 1999 12:59:57 -0600; Hey now you caught this "B Engineer's" attention: -- I would love to see the W.O. Brown book. There seems to have been a lot of BROWN's writing RF power over the years. George Brown authored THEORY A; /archives//html/Amps/1999-06/msg00479.html (11,902 bytes)
194. [AMPS] 3-500Z,G triodes (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Fri, 18 Jun 1999 10:00:12 -0600; Thanks to Merit, W6NQ, for sharing real experience with 3-500Z triode returns at RF Parts. Sometimes here-say 'shoot from the hip' comments gets out of hand, and a particular brand gets a bad rap. Th; /archives//html/Amps/1999-06/msg00522.html (7,311 bytes)
195. [AMPS] article in magazine on RF (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Fri, 18 Jun 1999 14:45:00 -0600; Nice to see what Peter Chadwick does in real life. RF DESIGN magazine June 99 issue has his article Radio Equipment Frequency Planning - all about spurs in TX and RX systems. 73 John K5PRO -- FAQ on; /archives//html/Amps/1999-06/msg00523.html (6,799 bytes)
196. [AMPS] various (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Fri, 25 Jun 1999 09:51:16 -0600; I enjoyed looking at the PIX of the compact amplifier of Larry's - nice piece. This email QSO stuff is funner than HF, cause it includes images now. Its also easier to jump in an grab the mike, as it; /archives//html/Amps/1999-06/msg00697.html (10,556 bytes)
197. [AMPS] go figure (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Mon, 28 Jun 1999 12:38:46 -0600; Speaking about doorknob caps, plate blockers etc: Larry Sez Its true. The big difference in building amps for fun at home and amps for a living is sometimes in the amount of overdesign one puts in. A; /archives//html/Amps/1999-06/msg00749.html (9,674 bytes)
198. [AMPS] small rice burners (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Tue, 4 May 1999 15:24:47 -0600; I would like to open a topic which is probably covered somewhere else, but this is the only ham radio forum that I read on email. I am interested in getting a modern exciter, such as the new HF rigs; /archives//html/Amps/1999-05/msg00049.html (7,727 bytes)
199. [AMPS] nice RX (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Thu, 6 May 1999 13:36:07 -0600; I saw an interesting RX at the NAB in Las Vegas a few weeks ago. It was an Eddystone Radio 6200 VLF/HF receiver. Covers 0.01 to 30 MHz, in 10 Hz increments. Has 45 MHz 1st and 1.4 MHz 2nd IF. Intermo; /archives//html/Amps/1999-05/msg00098.html (7,054 bytes)
200. [AMPS] failed RFC, rice boxes, etc. (score: 1): Author: jtml@lanl.gov (John T. M. Lyles); Date: Mon, 10 May 1999 10:43:35 -0600; Thanks to all for the advice on small HF all mode rice burners. I am looking forward to seeing a written test review of the FT100 from Yaesu. Anyone seen anything in print? No one even mentioned the; /archives//html/Amps/1999-05/msg00126.html (7,938 bytes)

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