Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Ten\-Tec\s+Centurion\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Ten\-Tec\s+Centurion\s*$/: 26 ]

Total 26 documents matching your query.

1. [Amps] Ten-Tec Centurion (score: 1): Author: "Georgens, Tom" <tom.georgens@engenio.com>; Date: Wed, 10 Nov 2004 15:16:22 -0800; I have a Centurion at my contest station in Barbados that works flawlessly on 10-80 but will arc on 160. It is tuned into a resonant antenna with a reasonable SWR. On 160, the amp will occasionally a; /archives//html/Amps/2004-11/msg00131.html (7,656 bytes)
2. Re: [Amps] Ten-Tec Centurion (score: 1): Author: Vic Rosenthal <vic@rakefet.com>; Date: Wed, 10 Nov 2004 16:54:33 -0800; Georgens, Tom wrote: My theory is that there may be power overshoot from the TS850 on the leading edge of the carrier that is causing the arcing. It is hard to see this on the wattmeter and my 3 othe; /archives//html/Amps/2004-11/msg00133.html (7,816 bytes)
3. Re: [Amps] Ten-Tec Centurion (score: 1): Author: R.Measures <r@somis.org>; Date: Wed, 10 Nov 2004 17:03:13 -0800; On Nov 10, 2004, at 3:16 PM, Georgens, Tom wrote: I have a Centurion at my contest station in Barbados that works flawlessly on 10-80 but will arc on 160. It is tuned into a resonant antenna with a r; /archives//html/Amps/2004-11/msg00134.html (10,235 bytes)
4. Re: [Amps] Ten-Tec Centurion (score: 1): Author: "k7fm" <k7fm@teleport.com>; Date: Wed, 10 Nov 2004 17:25:29 -0800; "RF sensed switching invariably results in the amplifier hot-switching because RF is already present when the relays in the amplifier begin to switch. Hot-switching creates current transients and tho; /archives//html/Amps/2004-11/msg00135.html (8,720 bytes)
5. Re: [Amps] Ten-Tec Centurion (score: 1): Author: Will Matney <craxd1@ezwv.com>; Date: Wed, 10 Nov 2004 20:15:36 -0500; Rich and Tom, I'm pretty sure there's no RF switching circuit in that amplifier. About the only use of this I remember in amateur amps was a mobile solid-state amp. I doubt it would have a relay jack; /archives//html/Amps/2004-11/msg00136.html (11,300 bytes)
6. Re: [Amps] Ten-Tec Centurion (score: 1): Author: R.Measures <r@somis.org>; Date: Wed, 10 Nov 2004 18:40:49 -0800; On Nov 10, 2004, at 5:25 PM, k7fm wrote: Rich said: "RF sensed switching invariably results in the amplifier hot-switching because RF is already present when the relays in the amplifier begin to swit; /archives//html/Amps/2004-11/msg00137.html (9,741 bytes)
7. Re: [Amps] Ten-Tec Centurion (score: 1): Author: "k7fm" <k7fm@teleport.com>; Date: Wed, 10 Nov 2004 19:40:23 -0800; "RF must be in the amplifier to trigger the RF sensing which causes the relays to close. How could RF not be on the NO relay contacts as they are closing and yet be on the RF sensing circuit that is; /archives//html/Amps/2004-11/msg00138.html (8,474 bytes)
8. RE: [Amps] Ten-Tec Centurion (score: 1): Author: "Georgens, Tom" <tom.georgens@engenio.com>; Date: Wed, 10 Nov 2004 21:08:21 -0800; Thanks to all respondents for the thoughts. A few comments. 1. The fact that it does not happen with the other amps does work against my theory. I should note that the other amps are not the same (AL; /archives//html/Amps/2004-11/msg00139.html (11,094 bytes)
9. Re: [Amps] Ten-Tec Centurion (score: 1): Author: "Michael Tope" <W4EF@dellroy.com>; Date: Wed, 10 Nov 2004 22:09:22 -0800; How did you have the keying hooked up, Tom? It looks like the Centurion uses a scheme similar to the Alpha 78 whereby you plug your keyer into the amplifier to generate relay closure, and then the am; /archives//html/Amps/2004-11/msg00140.html (14,732 bytes)
10. Re: [Amps] Ten-Tec Centurion (score: 1): Author: R.Measures <r@somis.org>; Date: Thu, 11 Nov 2004 03:26:50 -0800; On Nov 10, 2004, at 7:40 PM, k7fm wrote: Rich said: "RF must be in the amplifier to trigger the RF sensing which causes the relays to close. How could RF not be on the NO relay contacts as they are c; /archives//html/Amps/2004-11/msg00141.html (10,147 bytes)
11. Re: [Amps] Ten-Tec Centurion (score: 1): Author: "k7fm" <k7fm@teleport.com>; Date: Thu, 11 Nov 2004 06:02:21 -0800; "Measuring the actual resistance of the parasitic suppressor resistors and eye-balling their appearance could eliminate parasitics as a possible scenario in under 2-minutes - if the soldering-iron is; /archives//html/Amps/2004-11/msg00142.html (10,259 bytes)
12. Re: [Amps] Ten-Tec Centurion (score: 1): Author: "Ian White, G3SEK" <G3SEK@ifwtech.co.uk>; Date: Thu, 11 Nov 2004 12:53:34 +0000; R. Measures wrote: Assuming the spike is at the leading edge of the transmitted signal, then an rf sensing circuit could delay the turn on of the rf amplifier until after the passing of the spike. Co; /archives//html/Amps/2004-11/msg00143.html (11,261 bytes)
13. Re: [Amps] Ten-Tec Centurion (score: 1): Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>; Date: Thu, 11 Nov 2004 09:27:20 -0500; Interesting discussion, but has anybody looked at the diagram of the Centurion? I had a TT Titan ages ago, it indeed has RF sensing on the input. But the purpose was to inhibit RX/TX transfer to prev; /archives//html/Amps/2004-11/msg00144.html (11,924 bytes)
14. Re: [Amps] Ten-Tec Centurion (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 11 Nov 2004 09:13:46 -0500; I just took a look at some of the emails on this subject. Saying that please pardon any repetition of anything previously mentioned. When the amplifier is in idle state what impedances does it see on; /archives//html/Amps/2004-11/msg00145.html (11,801 bytes)
15. Re: [Amps] Ten-Tec Centurion (score: 1): Author: R.Measures <r@somis.org>; Date: Thu, 11 Nov 2004 06:34:55 -0800; On Nov 11, 2004, at 6:02 AM, k7fm wrote: Rich said: "Measuring the actual resistance of the parasitic suppressor resistors and eye-balling their appearance could eliminate parasitics as a possible sc; /archives//html/Amps/2004-11/msg00146.html (11,787 bytes)
16. Re: [Amps] Ten-Tec Centurion (score: 1): Author: R.Measures <r@somis.org>; Date: Thu, 11 Nov 2004 06:42:51 -0800; On Nov 11, 2004, at 4:53 AM, Ian White, G3SEK wrote: R. Measures wrote: Assuming the spike is at the leading edge of the transmitted signal, then an rf sensing circuit could delay the turn on of the; /archives//html/Amps/2004-11/msg00147.html (10,307 bytes)
17. Re: [Amps] Ten-Tec Centurion (score: 1): Author: "Ian White, G3SEK" <G3SEK@ifwtech.co.uk>; Date: Thu, 11 Nov 2004 15:03:20 +0000; R. Measures wrote: when the input relay is closed but the output contacts are not. The PA then has full drive but no load, which could lead to very high voltages across the tank components. Ian -- Wo; /archives//html/Amps/2004-11/msg00148.html (10,136 bytes)
18. Re: [Amps] Ten-Tec Centurion (score: 1): Author: R.Measures <r@somis.org>; Date: Thu, 11 Nov 2004 07:06:21 -0800; On Nov 11, 2004, at 6:13 AM, Bill Fuqua wrote: I just took a look at some of the emails on this subject. Saying that please pardon any repetition of anything previously mentioned. When the amplifier; /archives//html/Amps/2004-11/msg00149.html (10,698 bytes)
19. Re: [Amps] Ten-Tec Centurion (score: 1): Author: R.Measures <r@somis.org>; Date: Thu, 11 Nov 2004 07:10:58 -0800; Ian -- The Tune-C on my SB-220 has a potential withstanding ability of c. 3600v. For the Load-C it's about 1000v. On Nov 11, 2004, at 7:03 AM, Ian White, G3SEK wrote: R. Measures wrote: when the inpu; /archives//html/Amps/2004-11/msg00150.html (9,970 bytes)
20. Re: [Amps] Ten-Tec Centurion (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 11 Nov 2004 10:24:35 -0500; At 07:06 AM 11/11/2004 -0800, R. Measures wrote: On Nov 11, 2004, at 6:13 AM, Bill Fuqua wrote: When the amplifier is in idle state what impedances does it see on the input and output. Unloaded ampli; /archives//html/Amps/2004-11/msg00152.html (11,636 bytes)

Current List: 1 - 20
Page: [1] [2]