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261. [AMPS] HV Pole Pigs ++ (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Fri, 21 Dec 2001 07:25:58 -0800; [Steve Katz] I've never even seen any that small. The pole pig mounted directly behind my home is 96kVA and is quite small (exterior). The local utility company, Los Angeles Dept. of Water and Power; /archives//html/Amps/2001-12/msg00438.html (14,256 bytes)
262. [AMPS] 1800 hz (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Fri, 21 Dec 2001 07:50:04 -0800; No doubt it does. Never used the Paragon, but I use dual 500 Hz filters (8.83 MHz 2nd IF & 455 kHz 3rd IF) in my TS850S and indeed the PBT works better with tight filters for CW. Rich (and the rest o; /archives//html/Amps/2001-12/msg00440.html (7,586 bytes)
263. [AMPS] HV Pole Pigs ++ (OT) (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Fri, 21 Dec 2001 07:53:39 -0800; Wonder if they use baluns for this application <grin>? After all, the transformer and load (people's homes) is balanced, and the HT distribution system is obviously unbalanced (hard to believe the so; /archives//html/Amps/2001-12/msg00441.html (9,737 bytes)
264. [AMPS] another myth on EMF (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Mon, 5 Nov 2001 10:42:55 -0800; There is little doubt that operating high-powered amateur amplifiers directly and negatively impacts its users' health, e.g.: -I have dropped a 170 lb amplifier on my foot, and although did not break; /archives//html/Amps/2001-11/msg00053.html (16,182 bytes)
265. [AMPS] another myth on EMF (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Tue, 6 Nov 2001 07:33:06 -0800; When I installed a 70 foot tower at a new home I had just purchased, but prior to moving into the home, I thought leaving the tower there with no antennas, feedlines or station would get the neighbor; /archives//html/Amps/2001-11/msg00077.html (12,431 bytes)
266. [AMPS] Thunderbolt questions (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Tue, 6 Nov 2001 07:38:12 -0800; Be careful of the HV filter cap, Bill. With SS rectifiers, you may exceed its rating. It's likely so old that it needs replacement, anyway, but as I recall, EFJ only used a 2500V oil-filled cap (moun; /archives//html/Amps/2001-11/msg00079.html (10,240 bytes)
267. [AMPS] Thunderbolt questions (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Tue, 6 Nov 2001 07:40:58 -0800; Rich, the EFJ T-bolt (2 x 4-400's) is grid-driven and set up for only about 20W drive to run 1kW DC input. If the HV is increased much above 2200V, the filter cap will definitely require replacement,; /archives//html/Amps/2001-11/msg00080.html (10,244 bytes)
268. [AMPS] Thunderbolt questions (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Tue, 6 Nov 2001 09:41:08 -0800; [Steve Katz] The T-bolt, at least the one I had 1969-1975 or so, had a Pyranol cap. It not only failed, it leaked all over the operating bench; but where it was installed it must have run awfully ho; /archives//html/Amps/2001-11/msg00092.html (8,906 bytes)
269. [AMPS] EMF effects (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Tue, 6 Nov 2001 11:02:19 -0800; [Steve Katz] Absolutely! I drive almost right past KVOH on 17 MHz, 150kW carrrier power and ~500kW erp in my path, on my way to the office. Don't need to turn the headlamps on, they go on by themsel; /archives//html/Amps/2001-11/msg00095.html (7,265 bytes)
270. [AMPS] Non-Inductive Carbon Resistors (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Tue, 6 Nov 2001 13:43:46 -0800; Fair Radio Sales and Surplus Sales of Nebraska both list quite a lot of non-inductive resistors in their web catalogs. I recently purchased some 600 Ohm, 100W units from Surplus Sales for terminating; /archives//html/Amps/2001-11/msg00102.html (8,873 bytes)
271. [AMPS] Non-Inductive Carbon Resistors (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Tue, 6 Nov 2001 15:51:29 -0800; Yep. http://www.fairradio.com http://www.surplussales.com 73, WB2WIK/6 "Each success only buys an admission ticket to a more difficult problem." -- Henry Kissinger -- FAQ on WWW: http://www.contestin; /archives//html/Amps/2001-11/msg00104.html (10,441 bytes)
272. [AMPS] More t'bolt questions (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Wed, 7 Nov 2001 07:24:30 -0800; I used to use a 50 Ohm Cantenna in parallel with the input, and never bothered to remove the 350 Ohm assembly (why bother? leaving it there results in 43.75 Ohms) and that worked fine. The T-bolt cou; /archives//html/Amps/2001-11/msg00130.html (11,681 bytes)
273. [AMPS] Tuning question (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Fri, 9 Nov 2001 11:00:11 -0800; I don't even get the question. If the amp dissipates more power when running less output, crank 'er up. Isn't there a rule that stipulates hams are expected to run the necessary power to maintain com; /archives//html/Amps/2001-11/msg00164.html (9,276 bytes)
274. [AMPS] swan mark-2 (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Thu, 15 Nov 2001 08:47:49 -0800; Doubt you'd need ALC, the Mark I and Mark II were both hard to drive. If you have a 940S/AT with the internal ATU, you'll probably need to use that ATU to be able to fully drive either a Mark I or a; /archives//html/Amps/2001-11/msg00262.html (8,925 bytes)
275. [AMPS] Checking out old amp (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Fri, 16 Nov 2001 11:25:57 -0800; In my experience using tetrodes without handles but from the same family, B+ needs to be substantially higher than Eg2 in order to protect Eg2 from harm, and Ig2 generally decreases as Ep is increase; /archives//html/Amps/2001-11/msg00288.html (10,447 bytes)
276. [AMPS] Checking out old amp (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Fri, 16 Nov 2001 14:52:11 -0800; Rich, I might mention: Chatted with my old buddy Mike WB2AJI in North Carolina on 20m last night. Mike and I grew up pretty near each other in New Jersey too many years ago, and we used to work toget; /archives//html/Amps/2001-11/msg00298.html (8,460 bytes)
277. [AMPS] 8877 rectifier board considerations (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Mon, 19 Nov 2001 07:56:41 -0800; It appears as though no one answered you, at least not on the reflector. I'd question the sanity of homebrewing rectifier boards when K2AW's modules are so cheap, are well insulated, and work great.; /archives//html/Amps/2001-11/msg00328.html (10,101 bytes)
278. [AMPS] Need HV connectors (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Mon, 19 Nov 2001 09:22:23 -0800; I still use Millen 7 kV connectors. Don't know if they're still being manufactured, or everything I find is surplus, but it's not difficult to find them. Last batch purchased from Henry Radio (the am; /archives//html/Amps/2001-11/msg00331.html (9,219 bytes)
279. [AMPS] Need HV connectors (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Mon, 19 Nov 2001 10:14:31 -0800; Which is a very good reason to not waste time on eBay...I don't, and doubt I ever shall. WB2WIK/6 "Each success only buys an admission ticket to a more difficult problem." -- Henry Kissinger -- FAQ o; /archives//html/Amps/2001-11/msg00337.html (8,442 bytes)
280. [AMPS] 8877 rectifier board considerations (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Mon, 19 Nov 2001 10:20:20 -0800; Hi Jim, I surely wouldn't bother with the setup costs of prototyping PC boards for an array of diodes...the off-the-shelf prototype boards in all the electronics hobby stores will do the job just fin; /archives//html/Amps/2001-11/msg00338.html (10,583 bytes)

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