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1. [AMPS] Austenitic steels (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Tue, 16 Oct 2001 15:45:28 -0400; Message text written by Peter Chadwick steel'. Just what is that? I've been through Machinery's Handbook and a whole slew of my model engineering text books, but can't find a reference to it.< Try 'M; /archives//html/Amps/2001-10/msg00345.html (6,719 bytes)
2. [AMPS] 8122 (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Mon, 10 Sep 2001 15:07:13 -0400; These devices always seem to have a reputation for bad behaviour. Has it ever been established whether the tubes themselves are flaky or is it just that they've habitually been used with inadequate p; /archives//html/Amps/2001-09/msg00190.html (6,664 bytes)
3. [AMPS] 4-1000A Project (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 4 Apr 2001 15:19:18 -0500; Message text written by measures For the record, 'mad cow disease' is BSE (bovine spongiform encepalopathy). Humans die of vCJD (variant Creuzfeldt-Jakov disease), not BSE. 73 John GW4FRX -- FAQ on W; /archives//html/Amps/2001-04/msg00073.html (8,763 bytes)
4. [AMPS] MLA2500 and screen voltage for 4CX800. (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Fri, 13 Apr 2001 07:40:11 -0400; Message text written by measures not-regulated screen PS. This produces c. 5% regulation on SSB. < Try comparing like with like. The TS-830 does not use a small ceramic tetrode with an enormous prope; /archives//html/Amps/2001-04/msg00294.html (8,787 bytes)
5. [AMPS] Zener screen supplies (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Fri, 13 Apr 2001 16:57:10 -0400; Message text written by "Ian White, G3SEK" one.< I've had dozens, many admittedly self-induced whilst developing and testing protection circuitry. On the basis of personal experience together with wh; /archives//html/Amps/2001-04/msg00305.html (9,173 bytes)
6. [AMPS] Zener screen supplies (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Mon, 16 Apr 2001 05:41:17 -0400; Message text written by INTERNET:conrad.farlow@virgin.net This must be the troll of all time. Small 4CX tetrodes have EXTERNAL anodes and also EXTERNAL screen rings, separated by a few millimetres of; /archives//html/Amps/2001-04/msg00357.html (9,118 bytes)
7. [AMPS] Zener screen supplies (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Mon, 16 Apr 2001 09:59:24 -0400; Message text written by measures path.< The Eimac outline drawing (Page 8 of data sheet no 4009 dated 9-1-79) for the 4CX250B/FG does not enumerate this dimension and in any event is rather oversize.; /archives//html/Amps/2001-04/msg00360.html (9,546 bytes)
8. [AMPS] Zener screen supplies (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Mon, 16 Apr 2001 14:39:34 -0400; Message text written by measures Using Eimac's letter nomenclature, please indicate which dimension(s) is (are) to be subtracted from which to derive the "length of the anode insulator". 73 John GW4F; /archives//html/Amps/2001-04/msg00370.html (8,980 bytes)
9. [AMPS] Zener screen supplies (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Mon, 16 Apr 2001 17:01:58 -0400; Message text written by measures scale. < Indeed. But you originally stated: which is incorrect. The external anode-screen insulator in a small 4CX has a path length of about 7mm. Flashovers can and; /archives//html/Amps/2001-04/msg00372.html (9,548 bytes)
10. [AMPS] Zener screen supplies (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Tue, 17 Apr 2001 04:22:14 -0400; Message text written by measures Many people have the grace to acknowledge errors when they make them. Irrelevant and hedging. I suggest you measure it rather than relying on how it "looks". 73 John; /archives//html/Amps/2001-04/msg00380.html (9,059 bytes)
11. [AMPS] Zener screen supplies (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Tue, 17 Apr 2001 05:33:23 -0400; Message text written by Peter Chadwick My guess is that he knows perfectly well but is more interested in trolling than anything else. Hence the high incidence of what psychotherapists call 'crossed; /archives//html/Amps/2001-04/msg00381.html (9,309 bytes)
12. [AMPS] Zener screen supplies (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Tue, 17 Apr 2001 14:16:09 -0400; Message text written by measures I did say that I would refrain from feeding the trolls. However -- and for the record -- those who read material posted to this reflector may recall a note from me da; /archives//html/Amps/2001-04/msg00400.html (9,562 bytes)
13. [AMPS] Zener screen supplies (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 18 Apr 2001 05:04:21 -0400; Message text written by Bill Aycock just under 7mm long, as opposed to slightly over 10mm on the drawing.< As a troll-avoidance measure, perhaps what I should have said was: Physical measurement of a; /archives//html/Amps/2001-04/msg00413.html (9,188 bytes)
14. [AMPS] '250 anode-screen (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 18 Apr 2001 12:33:42 -0400; Message text written by "Steve Thompson" at voltages between 5 and 12kV, but I didn't get any external arcs.< Interesting. Many years ago I often used to see '250Bs removed from a Marconi NT204 distr; /archives//html/Amps/2001-04/msg00424.html (7,372 bytes)
15. [AMPS] HV PSU Question (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Mon, 1 Jan 2001 12:04:54 -0500; Message text written by "Steve Eldridge" supply as part of a series on the 4CX250/350 in the " Short Wave Magazine", June '81 to Jan '82. This enabled a wide range of control of final HT voltage, alo; /archives//html/Amps/2001-01/msg00012.html (8,961 bytes)
16. [AMPS] Re: Re: G2DAF Amps Circuit (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Thu, 26 Oct 2000 03:36:14 -0400; Message text written by INTERNET:Jan.E.Holm@telia.se gain (distortion and what not) so I told him about it and guess what he told me.Yes he said " I am operating my radio acording to the manual so th; /archives//html/Amps/2000-10/msg00563.html (7,697 bytes)
17. [AMPS] Talking SB-200 (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Fri, 23 Jun 2000 13:02:42 -0400; Message text written by Alek Petkovic only think I have heard one tube in 40 years talk back - but perhaps you are lucky enough to have that happen to you. If it is a tube, it will probably not happe; /archives//html/Amps/2000-06/msg00349.html (8,303 bytes)
18. [AMPS] Alpha Power service (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Tue, 16 May 2000 15:32:34 -0400; Last September I added the AlphaMax option to my four-year-old 87A and screwed up big-time when reassembling it, getting a connector orientation wrong. The result was a couple of fried PCB tracks, a; /archives//html/Amps/2000-05/msg00170.html (8,096 bytes)
19. [AMPS] RE: ALC (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Wed, 16 Feb 2000 11:15:58 -0500; Message text written by "Steve Thompson" setting simply sets a reference level in the ALC system so you retain all of the dynamic problems.< Is the FT-990 a known offender? Mine doesn't seem to gener; /archives//html/Amps/2000-02/msg00283.html (8,166 bytes)
20. [AMPS] Watt meters and PEP (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Fri, 14 Jan 2000 14:40:38 -0500; Message text written by "Ian White, G3SEK" If that was a reference to my good self, I'm no longer a hi-fi journalist within the meaning of the act -- chiefly because consumer audio nowadays is domina; /archives//html/Amps/2000-01/msg00284.html (9,345 bytes)

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