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

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TenTec\]\s+TT\s+Centurion\s*$/: 13 ]

Total 13 documents matching your query.

1. [TenTec] TT Centurion (score: 1): Author: "Doyle" <n4vv@comcast.net>; Date: Thu, 12 Jun 2008 14:29:56 -0400; GE, I have a new matched pair of 3-500Z tubes that I am going to install in my TT Centurion. Was wondering if it is necessary to run the tubes (filaments only) for a while with no HV. If so for how l; /archives//html/TenTec/2008-06/msg00247.html (6,948 bytes)
2. Re: [TenTec] TT Centurion (score: 1): Author: Richard Detweiler <rdetweil@hotmail.com>; Date: Thu, 12 Jun 2008 13:58:50 -0500; If they haven't been turned on the in the last month or so, let them run for an hour or so per month of storage time. The tubes should have a date code on them, that might give you an idea of how lon; /archives//html/TenTec/2008-06/msg00248.html (7,832 bytes)
3. Re: [TenTec] TT Centurion (score: 1): Author: "Gary Hoffman" <ghoffman@spacetech.com>; Date: Thu, 12 Jun 2008 17:12:41 -0400; Doyle, I've seen two, exactly opposite, views on this. One view says yes, run them. The heat from the filaments is supposed to activate the getter materials and absorb any stray gas. Thus preventing; /archives//html/TenTec/2008-06/msg00249.html (9,027 bytes)
4. Re: [TenTec] TT Centurion (score: 1): Author: Kimberly Elmore <cw_de_n5op@sbcglobal.net>; Date: Thu, 12 Jun 2008 14:28:40 -0700 (PDT); I discussion I saw said that the older, Eimac 3-500Z had zirconium in the anode and that when it was heated to at least a dull red, the zirconium becomes a getter. I don't know about newer tubes, or; /archives//html/TenTec/2008-06/msg00250.html (9,644 bytes)
5. Re: [TenTec] TT Centurion (score: 1): Author: "Duane Calvin" <ac5aa1@gmail.com>; Date: Thu, 12 Jun 2008 16:45:06 -0500; When I got my 3-500ZG matched pair replacements for my Centurion, they came with instructions to run the tubes for an hour (or two?) just with the filaments running before using them. I did, and they; /archives//html/TenTec/2008-06/msg00252.html (8,534 bytes)
6. Re: [TenTec] TT Centurion (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Thu, 12 Jun 2008 16:14:38 -0600; The getter is active, its deposited on the inside of the glass. If there are air molecules heating them with the filament causes some circulation within the tube and eventually they wander by the get; /archives//html/TenTec/2008-06/msg00255.html (9,578 bytes)
7. Re: [TenTec] TT Centurion (score: 1): Author: "Gary Hoffman" <ghoffman@spacetech.com>; Date: Thu, 12 Jun 2008 19:04:06 -0400; Duane, How did you accomplish that ? Did you have the means to shut off the high voltage ? Did you disconnect wires ? Did you run them in a test fixture that had only filament power (and a fan) ? 73; /archives//html/TenTec/2008-06/msg00256.html (10,213 bytes)
8. Re: [TenTec] TT Centurion (score: 1): Author: "Duane Calvin" <ac5aa1@gmail.com>; Date: Thu, 12 Jun 2008 19:02:59 -0500; Hmm, now that you ask, Gary, I'm not sure . . . I guess it wasn't with the B+ turned off, but just idling. You know, the memory is a tricky thing . . . :-) At least, I don't remember running filament; /archives//html/TenTec/2008-06/msg00259.html (11,070 bytes)
9. Re: [TenTec] TT Centurion (score: 1): Author: Kim Elmore <cw_de_n5op@sbcglobal.net>; Date: Thu, 12 Jun 2008 20:21:23 -0500; There's a good web page (among many) on getter material at http://www.thevalvepage.com/valvetek/getter/getter.htm The 3-500Z does use zirconium as a getter, and zirconium needs to be at about 1000 C; /archives//html/TenTec/2008-06/msg00261.html (9,027 bytes)
10. Re: [TenTec] TT Centurion (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Thu, 12 Jun 2008 22:25:35 -1000; This can be a problem with amplifiers that have a single transformer with secondaries for the HV, filament and control systems voltages. I would feel uncomfortable running it for a few hours, with n; /archives//html/TenTec/2008-06/msg00265.html (9,121 bytes)
11. [TenTec] TT Centurion (score: 1): Author: "Doyle" <n4vv@comcast.net>; Date: Fri, 13 Jun 2008 10:12:48 -0400; Thanks for all the responses, will run the tubes a couple of hours with only the filaments on, no HV. Doyle/N4VV _______________________________________________ TenTec mailing list TenTec@contesting.; /archives//html/TenTec/2008-06/msg00269.html (7,814 bytes)
12. Re: [TenTec] TT Centurion (score: 1): Author: Carter <k8vt@ameritech.net>; Date: Fri, 13 Jun 2008 15:22:51 -0400; Sorry but I think I missed something... With the Centurion, how are you going to run the filaments and still disable the HV? _______________________________________________ TenTec mailing list TenTec; /archives//html/TenTec/2008-06/msg00280.html (8,269 bytes)
13. [TenTec] TT Centurion (score: 1): Author: Tim <tim@ke4ke.com>; Date: Tue, 15 Mar 2016 17:25:20 -0500; Hi, I stopped by Radio City <http://www.radioinc.com/> today on my way to a meeting today. I believe I saw a Centurion amp in among the used radios for sale. I didn't look any further other than to c; /archives//html/TenTec/2016-03/msg00157.html (6,712 bytes)

Current List: 1 - 13
Page: [1]