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1. [AMPS] Ian White's URL (Pi/PI-L spreadsheet) (score: 297): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Sun, 10 Dec 2000 19:38:32 +0000; Sorry, I go away for 24 hours and look what happens... Please be aware that this project is "under construction". There are no outright errors, as far as I'm aware, but you do need to know how to use; /archives//html/Amps/2000-12/msg00182.html (7,563 bytes)
2. Re: [Amps] Re: re cooling of coils (Ian White, G3SEK) (score: 220): Author: "Ian White, G3SEK" <G3SEK@ifwtech.co.uk>; Date: Mon, 6 Sep 2004 10:01:34 +0100; Will Matney wrote: Ian, I would think a set of louvered holes at the input for the blower air in the chassis would do it. That is if they were aimed in different directions from one to the other. Thi; /archives//html/Amps/2004-09/msg00106.html (8,076 bytes)
3. [AMPS] mini Teflon coax, the white stuff (score: 206): Author: brian.kline@hybrid.com (brian.kline@hybrid.com); Date: Tue, 12 Feb 2002 01:33:16 -0800; This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --_=_NextPart_001_01C1B3A8.4C79C190 Content-Type: text/plain Hi; /archives//html/Amps/2002-02/msg00101.html (24,647 bytes)
4. [AMPS] G2DAF Circuit (score: 156): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Fri, 27 Oct 2000 07:32:57 +0100; The problem with the white noise test is that, like the two-tone test, it does not test the effect of variations at the word or syllable rate. If the only test is at high frequencies, the capacitors; /archives//html/Amps/2000-10/msg00607.html (10,730 bytes)
5. [Amps] SB220 T/R relay substitution (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.co.uk (Ian White, G3SEK); Date: Fri, 15 Nov 2002 23:31:36 +0000; Thanks - duly noted. Thanks for the offer - but if I did, I'd only be using a conventional short-persistence scope. Single-shot measurements can still be done using the storage devices at the back of; /archives//html/Amps/2002-11/msg00264.html (10,443 bytes)
6. [Amps] al80a (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.co.uk (Ian White, G3SEK); Date: Fri, 2 Aug 2002 14:18:20 +0100; Sorry, that's K6XX, at http://www.k6xx.com/ikanrite.html -- 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB); /archives//html/Amps/2002-08/msg00020.html (8,274 bytes)
7. [Amps] pictures (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.co.uk (Ian White, G3SEK); Date: Thu, 22 Aug 2002 13:50:35 +0100; Yes, that's true - but you pay heavily for the SLR feature. In digital cameras, SLR tends to be associated with a range of other 'professional' features which kick the whole camera up into a much hig; /archives//html/Amps/2002-08/msg00196.html (8,440 bytes)
8. [Amps] Re: [Amps] Re: [Amps] Re: [Amps] Re: [Amps ] Bird® 43 Manual (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.co.uk (Ian White, G3SEK); Date: Thu, 4 Apr 2002 13:09:44 +0100; That's only one particular type of directional coupler. Something like a Bruene bridge doesn't have any internal transmission line, and can be considered as making true single-point samples of curren; /archives//html/Amps/2002-04/msg00149.html (11,529 bytes)
9. [Amps] Re: [Amps] Re: [Amps] Re: [Amps] Re: [Amps ] Re: [Amps ] Bird® 43 Ma nual (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.co.uk (Ian White, G3SEK); Date: Fri, 5 Apr 2002 08:15:36 +0100; Bruene's fault, Tom's fault, and mine: we each should have said: "All impedances except infinity, that is." The actual reading was meaningless. There are no watts delivered into an infinite load - ob; /archives//html/Amps/2002-04/msg00170.html (13,639 bytes)
10. [AMPS] Shunt regulated high voltage psu (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Mon, 28 Jan 2002 19:58:55 +0000; Thanks, Marv - I'm pleased to learn it can be done reliably. Is this with an active regulator or with zeners? -- 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RS; /archives//html/Amps/2002-01/msg00233.html (10,501 bytes)
11. [AMPS] Gi7B Tube Amps (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Fri, 16 Nov 2001 13:02:00 +0000; I was thinking about what's needed for low seal temperatures and long life. Peter's experience only shows that his tube survives... but these Russian tubes have very wide production variations. If th; /archives//html/Amps/2001-11/msg00283.html (10,097 bytes)
12. [AMPS] Meter faces... (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Sat, 24 Nov 2001 08:43:43 +0000; I don't have that article, but a friend who repairs and resells RF heaters has done a lot of work on this (because the meters are always getting damaged). After trying rub-on transfers and various sc; /archives//html/Amps/2001-11/msg00407.html (8,329 bytes)
13. [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)
14. [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)
15. [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)
16. [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)
17. [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)
18. [AMPS] The Big V (again) (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Tue, 24 Jul 2001 21:58:05 +0100; Sorry for the delay - I was away from Saturday through Tuesday evening UTC. The problem is most unlikely to have originated here. I routinely use v**s-checking software and ZoneAlarm, and deliberatel; /archives//html/Amps/2001-07/msg00300.html (7,750 bytes)
19. [AMPS] Voltage Doublers (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Wed, 16 May 2001 18:16:12 +0100; To: <amps@contesting.com> Yes, but that's only the secondary. Perhaps I should have mentioned this, but in order to get the *total* effective series resistance, you need to add in the resistance of t; /archives//html/Amps/2001-05/msg00314.html (10,884 bytes)
20. [AMPS] Conjugate Matching and Efficiency (score: 151): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Sun, 27 May 2001 15:18:40 +0100; I should have said that all alternative viewpoints that are correctly applied - *if* they can be correctly applied at all - must give consistent results. Exactly! Basic circuit theory says that Norto; /archives//html/Amps/2001-05/msg00459.html (11,826 bytes)

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