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Total 20 documents matching your query.

1. [AMPS] CENTURION HELP (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Mon, 1 Sep 1997 14:25:11 +0000; To: <amps@contesting.com> On the first page of Eimac's instructions on the USE of the constant current curves (the ones you always refer to....). 73, Tom W8JI -- FAQ on WWW: http://www.contesting.co; /archives//html/Amps/1997-09/msg00010.html (8,325 bytes)
2. [AMPS] CENTURION HELP (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 1 Sep 97 13:55:16 -0800; To: <amps@contesting.com> It's not in mine, Mr. Rauch. Perhaps we have different versions. Please quote from your version. A publication date would be useful. . thanks Rich-- R. L. Measures, 805-386; /archives//html/Amps/1997-09/msg00015.html (8,310 bytes)
3. [AMPS] CENTURION HELP (score: 1): Author: n4kg@juno.com (T. A. Russell); Date: Fri, 5 Sep 1997 11:50:23 -0600; According to a friend who had one, the early CENTURIANS kept full idle current, even in the stand-by mode! Apparently, they also had problems with the BIAS transistor which could explain excessive cu; /archives//html/Amps/1997-09/msg00097.html (7,859 bytes)
4. [AMPS] CENTURION HELP (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 5 Sep 97 21:51:25 -0800; The only way this could happen is if the bias potential during receive is not what it is supposed to be. Agreed, Tom. There must have been a large current surge through the 3-500Zs for the 15A-rated; /archives//html/Amps/1997-09/msg00105.html (8,975 bytes)
5. [AMPS] CENTURION HELP (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Sat, 6 Sep 1997 00:44:51 +0000; I measured the seal temperature on a friend's unit, and the seals exceeded Eimac's ratings with the PA idling!! I added more cooling and more bias. Can anyone think of a reason to have a tube idle h; /archives//html/Amps/1997-09/msg00108.html (8,262 bytes)
6. [AMPS] CENTURION HELP (score: 1): Author: W6TG@aol.com (W6TG@aol.com); Date: Sat, 6 Sep 1997 13:13:02 -0400 (EDT); << >According to a friend who had one, the early The only way this could happen is if the bias potential during receive is not what it is supposed to be. It is my understanding that the early Centuri; /archives//html/Amps/1997-09/msg00118.html (8,024 bytes)
7. [AMPS] CENTURION HELP (score: 1): Author: measures@vc.net (Rich Measures); Date: Sat, 6 Sep 97 11:10:06 -0800; IMO, a genuine amplifier 'expert' would be curious as to why the anode current, which should be cutoff during receive/standby mode, wasn't. / / In order for the seals to get this hot, the bias volta; /archives//html/Amps/1997-09/msg00121.html (8,346 bytes)
8. [AMPS] CENTURION HELP (score: 1): Author: measures@vc.net (Rich Measures); Date: Sat, 6 Sep 97 16:10:29 -0800; amen, Terry. "Stupid is as stupid does." R. L. Measures, 805-386-3734, AG6K -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUES; /archives//html/Amps/1997-09/msg00125.html (8,140 bytes)
9. [AMPS] CENTURION HELP (score: 1): Author: K2BF@worldnet.att.net (Benjamin Friedland); Date: Sat, 6 Sep 1997 22:27:01 -0400; I'm a newbie to this reflector so I have no idea how long this discussion about Centurian idle current has been going on. Let me add a few comments.... I have a Centurian (purchased new) which is now; /archives//html/Amps/1997-09/msg00131.html (9,149 bytes)
10. [AMPS] CENTURION HELP (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Sun, 7 Sep 1997 11:30:09 +0000; I usually avoid general statements, but there might be something to be learned here that will help people owning certain amps. The Centurion amplifier I looked at had NO defective components, but si; /archives//html/Amps/1997-09/msg00146.html (9,535 bytes)
11. [AMPS] CENTURION HELP (score: 1): Author: measures@vc.net (Rich Measures); Date: Sun, 7 Sep 97 12:49:36 -0800; ...snip... Yeah, but the hams in Alaska probably loved 'em in the winter time. ...snip... Another 'old wives' tale' on ham radio. I have never seen a tube that failed from thermal shock. Are you tal; /archives//html/Amps/1997-09/msg00153.html (8,703 bytes)
12. [AMPS] CENTURION HELP (score: 1): Author: CATALANO_DENIS_E@hq.navsea.navy.mil (CATALANO_DENIS_E@hq.navsea.navy.mil); Date: Wed, 27 Aug 1997 11:54:05 -0400; Greetings, I've been reading the amp reflector for about a year now, and learning a lot. Now I have a problem that I need help with. My 422 TenTec Centurion has worked fine for several years. I haven; /archives//html/Amps/1997-08/msg00206.html (8,403 bytes)
13. [AMPS] CENTURION HELP (score: 1): Author: km1h@juno.com (km1h @ juno.com); Date: Wed, 27 Aug 1997 12:45:29 EDT; On Wed, 27 Aug 1997 11:54:05 -0400 CATALANO_DENIS_E@hq.navsea.navy.mil writes: Well IMO life does not revolve around parasitics. In your case I would start thinking about crispy critters across the A; /archives//html/Amps/1997-08/msg00210.html (9,539 bytes)
14. [AMPS] CENTURION HELP (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 27 Aug 97 14:14:00 -0800; ....... You are not the only Centurion owner who has experienced this problem, Denis. I would troubleshoot this amplifier thusly: Replace fuses; turn on. If the HV is normal, turn off and check Q1 an; /archives//html/Amps/1997-08/msg00211.html (9,848 bytes)
15. [AMPS] CENTURION HELP (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Wed, 27 Aug 1997 21:40:09 +0000; The line cord DC resistance should be low. Does the ten tec warm up the tubes BEFORE applying HV to give them a chance to de-gas? Did you try disconnected the anode leads and applying power to see i; /archives//html/Amps/1997-08/msg00214.html (8,506 bytes)
16. [AMPS] CENTURION HELP (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Wed, 27 Aug 1997 22:39:17 +0000; Actually two manufacturers tried and abandoned the nichrome. Neither manufacturer noted any improvement in field service. The Ten Tec tube problems were related to the lack of grid protection, and o; /archives//html/Amps/1997-08/msg00217.html (8,658 bytes)
17. [AMPS] CENTURION HELP (score: 1): Author: dbr@alumni.caltech.edu (David B. Ritchie); Date: Wed, 27 Aug 1997 21:24:10 -0700 (PDT); I've never seen a Centurion, but if they are anything like ALPHAs, they may have a resistor in a step start configuration -- if this resistor is popped (usually a big 10W+ ceramic job) it can and has; /archives//html/Amps/1997-08/msg00218.html (11,439 bytes)
18. [AMPS] CENTURION HELP (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 27 Aug 97 23:18:26 -0800; ....... Hmmm. The grid dissipating rating is 5w per grid, or 10w for a pair. If E = P/I, then E = 10w/0.13a = 77v. According to Eimac's characteristic curves, the driving potential is roughly 30v. Ap; /archives//html/Amps/1997-08/msg00219.html (7,822 bytes)
19. [AMPS] CENTURION HELP (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Fri, 29 Aug 1997 09:47:56 +0000; The waveform is not a sine wave, so RMS voltage does not apply. You actually would have to do a Fourier analysis to determine the effective voltage G-K voltage. Eimac, in their literature, gives a g; /archives//html/Amps/1997-08/msg00239.html (10,071 bytes)
20. [AMPS] CENTURION HELP (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 29 Aug 97 14:08:01 -0800; ...snip.... Reference? Rich-- R. L. Measures, 805-386-3734, AG6K -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contestin; /archives//html/Amps/1997-08/msg00243.html (8,281 bytes)

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