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381. [AMPS] Re: Parasitics (score: 83)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Fri, 22 May 1998 15:09:44 +0100
OK! Rather than use "s" at all (which could still be confusing), could I propose simply "R" and "L", AKA "the resistor" and "the inductor". Remember that the Impedance Meter can only measure the *eff
/archives//html/Amps/1998-05/msg00482.html (11,456 bytes)

382. [Amps] Re: Ionized Gas in the Tube (score: 83)
Author: "Ian White, G3SEK" <G3SEK@ifwtech.co.uk>
Date: Tue, 21 Oct 2003 07:19:30 +0100
Pat Barthelow wrote: Is the location of the glow important? I used to see Blue glow on the inside glass of 4-400A amps, and was once told that this is normal, and not indicative of Gas in the tubes.
/archives//html/Amps/2003-10/msg00198.html (9,908 bytes)

383. Re: [Amps] Wanted: 3CX800a anode collet (score: 83)
Author: "Ian White" <gm3sek@ifwtech.co.uk>
Date: Sun, 30 Nov 2014 16:28:29 -0500
Replied off-list. Thank you, Dan - and thank you, AMPS! 73 from Ian GM3SEK for clamp. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com
/archives//html/Amps/2014-11/msg00078.html (8,452 bytes)

384. Re: [Amps] GM3SEK Triode and Tetrode Boards - the last few (score: 83)
Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>
Date: Fri, 31 Jan 2020 09:42:16 +0000
I actually ended the URL with a line break, but the [Amps] server must have removed it. 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek/boards/boardshop.htm 73 Conrad PA5Y --Original Message-- From
/archives//html/Amps/2020-01/msg00057.html (8,622 bytes)

385. [Amps] Mistakes (score: 79)
Author: G3SEK at ifwtech.co.uk (Ian White, G3SEK)
Date: Tue Mar 4 13:40:06 2003
For example, the paragraph before that should have said "that he DIDN'T really mean." It's OK, the gas has gone now... the getter got it. -- 73 from Ian G3SEK 'In Practice' columnist for RadCom (RSGB
/archives//html/Amps/2003-03/msg00116.html (8,885 bytes)

386. [Amps] Why hasn't solid state replaced tubes? (score: 79)
Author: G3SEK at ifwtech.co.uk (Ian White, G3SEK)
Date: Thu Mar 6 01:41:05 2003
It does give equal weighting to splatter that only occurs on transient peaks of the modulating waveform. But transient IMD could for example include splatter that occurs on almost every word, which m
/archives//html/Amps/2003-03/msg00230.html (12,054 bytes)

387. [Amps] Why hasn't solid state replaced tubes? (score: 79)
Author: G3SEK at ifwtech.co.uk (Ian White, G3SEK)
Date: Sat Mar 8 06:37:39 2003
I have. The key point that you are still missing is that your logic does not work in reverse! If a signal is not "clean" on the opposite sideband, you cannot predict whether it will be causing signif
/archives//html/Amps/2003-03/msg00322.html (12,664 bytes)

388. [AMPS] reply on connectors and VHF (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Sun, 5 Mar 2000 22:31:33 +0000
I'd still put it one step saner than being here on the AMPS list... 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.demon.co.uk/g3sek -- F
/archives//html/Amps/2000-03/msg00215.html (8,501 bytes)

389. [AMPS] Re: Poor science (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Wed, 8 Mar 2000 07:09:13 +0000
I don't know. There is enough evidence to speculate, but not enough to confirm *any* view of what happened. We're 'all speculated out' about this, and we can't get any further without additional evid
/archives//html/Amps/2000-03/msg00454.html (10,265 bytes)

390. [AMPS] Re: Serious debate: Dynamic IMD testing (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Wed, 29 Mar 2000 21:21:46 +0100
In fact, there is a serious point behind my suggestion. Devising a test signal that adequately simulates the characteristics of the human voice is extremely difficult - and even when you've done it,
/archives//html/Amps/2000-03/msg01064.html (12,698 bytes)

391. [AMPS] Watt meters and PEP (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Fri, 14 Jan 2000 20:47:17 +0000
I hadn't realised that - I'm sorry that your technical honesty drove you out. But since you've de-cloaked, John, please could you tell us what the hifi industry purports to mean by "watts RMS" and "m
/archives//html/Amps/2000-01/msg00289.html (8,852 bytes)

392. [AMPS] BeO Cautions (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Mon, 20 Dec 1999 13:35:19 +0000
Pure beryllia is white, and the pink colour is not related to beryllia - see the FAQ page at www.svetlana.com 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB)
/archives//html/Amps/1999-12/msg00272.html (8,443 bytes)

393. [AMPS] parasitic suppressors (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Wed, 7 Apr 1999 09:16:15 +0100
On the contrary... but it has been used on the whole circuit, not just stopping at the suppressor. The original was from me - Dick was the messenger. If that one parameter was truly was all that matt
/archives//html/Amps/1999-04/msg00131.html (12,247 bytes)

394. [AMPS] More on the SB220 (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Sat, 20 Mar 1999 12:03:51 +0000
It's been years since I worked on an SB-220, so I didn't have the circuit handy, but have now downloaded it from Rich's web site (thanks!). R3 is not involved in the normal anode-cathode HV current p
/archives//html/Amps/1999-03/msg00506.html (10,605 bytes)

395. [AMPS] coil form plastics (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Mon, 15 Feb 1999 00:18:09 +0000
Fair enough - anything involving high RF potentials (and probably high temperatures too) is a risky application that would need careful testing before committing to production. It's more difficult fo
/archives//html/Amps/1999-02/msg00388.html (9,936 bytes)

396. [AMPS] Meter Scale (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Sun, 11 Oct 1998 09:44:03 +0100
Products that are intended for document illustration don't hack it in this application. Sure, you can use them to draw kind of scale, but it will look very home-made. What you need is a mechanical dr
/archives//html/Amps/1998-10/msg00106.html (10,560 bytes)

397. [AMPS] L4B (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Wed, 14 Oct 1998 22:53:39 +0100
Hey, that's fighting talk! One problem with these circuits is that many of them require an extra floating power supply. I've recently been playing with a circuit using a TL431 variable shunt regulato
/archives//html/Amps/1998-10/msg00185.html (10,302 bytes)

398. [AMPS] 3CX800 grid rings? (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Fri, 10 Jul 1998 08:04:40 +0100
Thanks, everybody - I have plenty of good ideas now! 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.demon.co.uk/g3sek -- FAQ on WWW: http
/archives//html/Amps/1998-07/msg00054.html (7,196 bytes)

399. [AMPS] Another arc question (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Sat, 9 May 1998 00:31:47 +0100
Not having the whole article to hand, I can't comment on that. No, just your interpretation, which is not the same as Wes's or almost everybody else's. Once again I think the answer is, no, just your
/archives//html/Amps/1998-05/msg00110.html (12,331 bytes)

400. [AMPS] Another arc question (score: 79)
Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Sat, 9 May 1998 07:19:31 +0100
As the words "series" and "trap" are normally used, that would imply that the suppressor is resonant - which it ain't. It's a resistor paralleled by an inductor, and the network analyser measurements
/archives//html/Amps/1998-05/msg00118.html (12,328 bytes)


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