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1. [TenTec] Centurion Question (score: 1): Author: "yv5mbx" <yv5mbx@arrl.net>; Date: Thu, 20 Jan 2005 20:31:14 -0400; on led _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec; /archives//html/TenTec/2005-01/msg00851.html (7,852 bytes)
2. Re: [TenTec] Centurion Question (score: 1): Author: Duane A Calvin <ac5aa@juno.com>; Date: Thu, 20 Jan 2005 18:37:07 -0600; This could happen if your power is right on the edge of 1000W and a very small variation in that power would drop it below the value needed to light that one LED. I don't know the circuitry, but it c; /archives//html/TenTec/2005-01/msg00852.html (8,666 bytes)
3. Re: [TenTec] Centurion Question (score: 1): Author: "Tommy" <aldermant@alltel.net>; Date: Thu, 20 Jan 2005 19:49:26 -0500; That happens pretty normally with Ten Tec amps. The 'reason' is the padder and the blocking caps have poor temp coefficients. Solution is to replace those caps with X5V temp coefficient capacitors...; /archives//html/TenTec/2005-01/msg00853.html (8,962 bytes)
4. [TenTec] Centurion Question (score: 1): Author: "Javier Remoto" <jlopez@plasticosomega.com>; Date: Thu, 20 Jan 2005 19:47:48 -0400; Hi, I am watching the behavior of my Centurion amp wich is connected to the Orion and found in the first minutes of cw operation I achieve 1000 watts on Top-Band but after 10 minutes or so the led sc; /archives//html/TenTec/2005-01/msg00858.html (7,414 bytes)
5. [TenTec] Centurion question (score: 1): Author: Phil Sussman <psussman@pactor.com>; Date: Sat, 17 Jan 2009 04:10:55 -0500; Greetings, I am considering the purchase of a Centurion HF amp. After reviewing the specs, I'm wondering about the 3100vdc supply dropping to 2600vdc under 'full' load. Is the power supply heavy enou; /archives//html/TenTec/2009-01/msg00176.html (7,312 bytes)
6. Re: [TenTec] Centurion question (score: 1): Author: <atrampler@att.net>; Date: Sat, 17 Jan 2009 04:37:10 -0600; Phil, You can read about people replacing the transformer in the Centurion (there was something about TT losing the guy who made their transformers/getting them from somebody else) but I think the is; /archives//html/TenTec/2009-01/msg00177.html (9,689 bytes)
7. Re: [TenTec] Centurion question (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Sat, 17 Jan 2009 08:16:45 -0600; Phil, Art and all; The Centurion I have was purchased new by me from Tentec in March of '96. It has the original tubes, transformers, capacitors, diodes and such. I find it to be a very reliable amp; /archives//html/TenTec/2009-01/msg00180.html (14,653 bytes)
8. Re: [TenTec] Centurion question (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Sat, 17 Jan 2009 11:08:24 -0600; Its the nature of a DC supply to soar with no load and to droop with load. Has been since rectifiers and filter capacitors were invented. With a light load the DC voltage soars to the peak of the AC; /archives//html/TenTec/2009-01/msg00182.html (10,752 bytes)
9. Re: [TenTec] Centurion question (score: 1): Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>; Date: Sat, 17 Jan 2009 10:51:37 -0800; The HV power supply in Ten Tec tube amps is not regulated. It is quite normal for the voltage to drop under load. They're designed to work that way, and they work fine. I have three Titans, a Herc I; /archives//html/TenTec/2009-01/msg00184.html (8,309 bytes)
10. Re: [TenTec] Centurion question (score: 1): Author: "mcelmer1" <mcelmer1@netecin.net>; Date: Sat, 17 Jan 2009 13:44:23 -0700; There are a couple of amps that offer the excellent bang and DBs for the buck: Centurion Drake L4B Both are rugged and well (for lack of a better word) designed and somewhat idiot proof. The Drake as; /archives//html/TenTec/2009-01/msg00188.html (9,819 bytes)
11. Re: [TenTec] Centurion question (score: 1): Author: <atrampler@att.net>; Date: Sat, 17 Jan 2009 15:32:42 -0600; Bob et alia I agree whole-heartedly that the Centurion in no way needs the transformer of HV PS replaced, unless it has failed. I provided the link only to show what one man has done, and to show tha; /archives//html/TenTec/2009-01/msg00190.html (18,487 bytes)
12. Re: [TenTec] Centurion question (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Sat, 17 Jan 2009 17:52:39 -0600; Some companies are reportedly running 3500 to 3800 volts on their 3-500Z amps. I'll stand by the tube manufacturers ratings of 4000 volts as being absolute max with 3000 volts being typical. Plate cu; /archives//html/TenTec/2009-01/msg00192.html (21,584 bytes)
13. Re: [TenTec] Centurion question (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Sat, 17 Jan 2009 18:48:03 -0600; You have to remember that in linear service the RF plate voltage will reach about twice the DC. On a plate modulated PA the peak RF voltage reaches 4 times the DC supply voltage. Many a tube (not nec; /archives//html/TenTec/2009-01/msg00194.html (11,936 bytes)
14. Re: [TenTec] Centurion question (score: 1): Author: "jack" <jfriend31@comcast.net>; Date: Sat, 17 Jan 2009 18:27:51 -0700; bringing the tube up to voltage slowly also extends the life. Eimac (years ago) suggested the best application would be to put a variac in the high voltage power supply primary and run the voltage up; /archives//html/TenTec/2009-01/msg00196.html (10,224 bytes)
15. Re: [TenTec] Centurion question (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Sat, 17 Jan 2009 19:45:46 -0600; The filament thrives more than the plate when brought up slowly. Most tubes larger than these 500 watt plate dissipation rating tubes have a peak filament or heater current rating on the data sheet.; /archives//html/TenTec/2009-01/msg00197.html (10,860 bytes)
16. Re: [TenTec] Centurion question (score: 1): Author: W8NJR@aol.com; Date: Sat, 17 Jan 2009 21:03:22 EST; Phil: I had some other calls on the Centurion today but told them that you had looked first. I would appreciate your decision soon so I can let the others know if it is available. Thanks and 73, Terr; /archives//html/TenTec/2009-01/msg00206.html (8,287 bytes)
17. Re: [TenTec] Centurion question (score: 1): Author: W8NJR@aol.com; Date: Sat, 17 Jan 2009 21:06:00 EST; Please cancel posting this and I will go direct. Thanks, Terry In a message dated 1/17/2009 9:03:22 P.M. Eastern Standard Time, W8NJR writes: Phil: I had some other calls on the Centurion today but t; /archives//html/TenTec/2009-01/msg00207.html (8,694 bytes)
18. Re: [TenTec] Centurion question (score: 1): Author: Phil Sussman <psussman@pactor.com>; Date: Sun, 18 Jan 2009 20:06:23 -0500; Hello all, I want to thank everyone for the assistance with my tuner question. I had many responses and I have learned a great deal about tuners in the process. I am in the process of securing a Cent; /archives//html/TenTec/2009-01/msg00223.html (9,960 bytes)

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