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241. [AMPS] SB-1000 mods? (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Mon, 10 Sep 2001 18:48:45 +0100; Count on it :-) 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.com/g3sek -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: a; /archives//html/Amps/2001-09/msg00191.html (9,113 bytes)
242. [AMPS] SB-1000 mods? (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Mon, 10 Sep 2001 18:47:13 +0100; Still watching those old black-and-white British war movies, I see... That's the idea! It will help a lot if someone in the USA can do the research on components and availability. 73 from Ian G3SEK E; /archives//html/Amps/2001-09/msg00192.html (9,653 bytes)
243. [AMPS] Glitch Resistors (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Wed, 12 Sep 2001 07:32:51 +0100; At a guess, it's much too short to avoid the risk of arcing from turn to turn when the full HV appears across it. Long and thin is what's needed here. 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book'; /archives//html/Amps/2001-09/msg00211.html (9,149 bytes)
244. [AMPS] SB-1000 mods? (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Wed, 12 Sep 2001 16:27:13 +0100; Make that "...from failure due to a current surge occurring for *any* reason." It's best to keep an open mind about the causes, but by all means protect against the effects. 73 from Ian G3SEK Editor,; /archives//html/Amps/2001-09/msg00221.html (8,635 bytes)
245. [AMPS] SB-1000 mods? (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Wed, 12 Sep 2001 22:33:48 +0100; You appear to have forgotten that this very subject was discussed at some length back in January/February. Here are a few quotes from the literature. "Although a very high degree of insulation betwee; /archives//html/Amps/2001-09/msg00223.html (10,347 bytes)
246. [AMPS] SB-1000 mods? (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Thu, 13 Sep 2001 11:06:38 +0100; Nah... you're just not changing your memory backup batteries often enough. Or maybe it's parasitic diodes in the I/O ports :-) We all know that parasitic oscillations can be a cause of current surges; /archives//html/Amps/2001-09/msg00226.html (9,381 bytes)
247. [AMPS] About triodes, tetrodes and IMD (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Fri, 14 Sep 2001 20:32:11 +0100; Yes, I do sell screen regulators - but I don't sell hype. What I sell is based on clear technical information. It's on my website for anyone to see, and above all I want people to do their own thinki; /archives//html/Amps/2001-09/msg00254.html (7,819 bytes)
248. [AMPS] IMD (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Mon, 17 Sep 2001 19:16:32 +0100; Good point. It emphasizes that the performance of an amplifier is a combination of several things: * The tube(s) * The circuit configuration * The power supply * The operator who tunes, loads and dri; /archives//html/Amps/2001-09/msg00288.html (8,259 bytes)
249. [AMPS] IMD (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Tue, 18 Sep 2001 18:00:17 +0100; There's a confusion here between in-channel IMD and off-channel IMD. In-channel IMD is heard as distortion of the audio, and -40dB distortion is excellent quality for a band-limited speech signal. Of; /archives//html/Amps/2001-09/msg00326.html (10,559 bytes)
250. [AMPS] IMD (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Tue, 18 Sep 2001 17:17:58 +0100; Having given talks with Peter in the audience, I know just how they felt! 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.com/g3sek -- FAQ; /archives//html/Amps/2001-09/msg00327.html (9,123 bytes)
251. [AMPS] Distortion Measurement Distortion (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Wed, 19 Sep 2001 17:12:48 +0100; For you and me, it's what happens on the air with speech that really matters. For labs and reviewers, they need some way to make consistent tests that are reproducible from rig to rig. However, these; /archives//html/Amps/2001-09/msg00356.html (9,350 bytes)
252. [AMPS] IMD (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Thu, 20 Sep 2001 10:32:01 +0100; It's true in principle that white noise contains equal components at all frequencies, but it doesn't contain the very strong components at syllabic rates that speech does. The frequency spectrum of s; /archives//html/Amps/2001-09/msg00363.html (8,404 bytes)
253. [AMPS] Distortion Measurement Distortion (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Thu, 20 Sep 2001 10:35:08 +0100; To get it just right in storage mode, that intensity control really does need a slow-motion drive! Artificial intelligence... no substitute for the real thing. 73 from Ian G3SEK Editor, 'The VHF/UHF; /archives//html/Amps/2001-09/msg00364.html (8,457 bytes)
254. [AMPS] Additional Info Voltage Doubler/Filter Capacitance (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Fri, 21 Sep 2001 17:38:48 +0100; Double-click at the *top left* or *bottom left* corner of the schematic to change the rectifier configuration. Double-click *on* the rectifier to select the diodes from the drop-down list. Not exactl; /archives//html/Amps/2001-09/msg00390.html (11,367 bytes)
255. [AMPS] Additional Info Voltage Doubler/Filter Capacitance (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Fri, 21 Sep 2001 18:01:58 +0100; With a 2600V/80-ohm transformer, the 6*1N5408 rectifiers I just posted, a 30uF/2-ohm capacitor, 60Hz mains and 1A constant-current load, it predicts an average for V(C1) of 3260V with ripple between; /archives//html/Amps/2001-09/msg00391.html (9,441 bytes)
256. [AMPS] Additional Info Voltage Doubler/Filter Capacitance (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Fri, 21 Sep 2001 19:55:32 +0100; The current version (since March) is 2.0.1 build 32, downloadable from: http://www.duncanamps.com/psud2/download.html (855KB). It could be that will fix your Pegasus problem also. 73 from Ian G3SEK E; /archives//html/Amps/2001-09/msg00395.html (9,584 bytes)
257. [AMPS] RFI from Clipperton-L (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Thu, 27 Sep 2001 20:18:18 +0100; As in "Build it, they will come"? 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.com/g3sek -- FAQ on WWW: http://www.contesting.com/FAQ/a; /archives//html/Amps/2001-09/msg00443.html (7,924 bytes)
258. [AMPS] coax connector ratings (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Fri, 28 Sep 2001 15:57:41 +0100; While that is true, they suffer from the same problem as BNC, in that the bayonet locking force comes from compressing a rubber gasket, which eventually softens and loosens the connector. A better so; /archives//html/Amps/2001-09/msg00470.html (9,381 bytes)
259. [AMPS] G3RZP (score: 147): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Fri, 28 Sep 2001 19:55:54 +0100; Peter asked me to pass on the news that he'll be off AMPS for several weeks. The cat brought a live shrew into the house, and while trying to catch the shrew, he tripped over the cat. They're not sur; /archives//html/Amps/2001-09/msg00476.html (7,831 bytes)
260. [AMPS] G3RZP (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Sat, 29 Sep 2001 00:09:39 +0100; To: <amps@contesting.com> He said he caught the shrew and "expelled" it. No shrew-slaying was mentioned. 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB) http; /archives//html/Amps/2001-09/msg00487.html (8,416 bytes)

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