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Total 34 documents matching your query.

1. [Amps] tubes (score: 1): Author: carlseye at tampabay.rr.com (carl seyersdahl); Date: Thu Apr 10 16:03:22 2003; This is something I should know , but it seems to have escaped my memory bank. !! I have several 811A's and all of them have oblong shiny spots on the plates, and they all glow a dull red under full; /archives//html/Amps/2003-04/msg00104.html (6,526 bytes)
2. [Amps] tubes (score: 1): Author: garyschafer at attbi.com (Gary Schafer); Date: Thu Apr 10 18:12:16 2003; Hi Carl, Yes they are probably going bad. The shiny spots are the start of holes being burned in the plates. 811s should never be run with any color at all. Also I think that amp has only 3 tubes? If; /archives//html/Amps/2003-04/msg00107.html (7,039 bytes)
3. [Amps] tubes (score: 1): Author: aa6dx at pacbell.net (AA6DX); Date: Thu Apr 10 19:01:13 2003; Most likely "getter" -- Mark AA6DX This is something I should know , but it seems to have escaped my memory bank. !! I have several 811A's and all of them have oblong shiny spots on the plates, and t; /archives//html/Amps/2003-04/msg00108.html (7,036 bytes)
4. [Amps] TUBES (score: 1): Author: carlseye at tampabay.rr.com (carl seyersdahl); Date: Wed Mar 26 18:32:29 2003; to all those who responded to my request for tubes, (12AU7) be advised that I am more than happy with the results. I received 8 tubes total, without even sending an address. In the process of checkin; /archives//html/Amps/2003-03/msg00855.html (6,565 bytes)
5. [Amps] TUBES (score: 1): Author: ni4l@charter.net (NI4L); Date: Sat, 10 Aug 2002 16:59:59 -0400; Hello All I have 4 like new 4-250A with sockets 35.00 plus shipping. thanks -- NI4L CUSTOM RESONANT DIPOLE LEGAL LIMIT ++ CUSTOM MADE CENTER FED DIPOLE Made with the same components used by our milit; /archives//html/Amps/2002-08/msg00100.html (6,464 bytes)
6. [Amps] TUBES (score: 1): Author: ni4l@charter.net (NI4L); Date: Sat, 10 Aug 2002 17:03:21 -0400; That s is 35.00 each plus shipping. sorry -- NI4L CUSTOM RESONANT DIPOLE LEGAL LIMIT ++ CUSTOM MADE CENTER FED DIPOLE Made with the same components used by our military forces today Custom made to YO; /archives//html/Amps/2002-08/msg00101.html (6,569 bytes)
7. [Amps] TUBES (score: 1): Author: 2@vc.net (2); Date: Sat, 10 Aug 2002 19:47:47 -0700; good tube. The 4-250A has the same cathode/filament as a 3-500Z, so it will make the same pep on ssb. - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, www.vcnet.com/measures. end; /archives//html/Amps/2002-08/msg00104.html (7,018 bytes)
8. [AMPS] tubes (score: 1): Author: W7lr@aol.com (W7lr@aol.com); Date: Thu, 6 Sep 2001 10:20:46 EDT; --part1_24.18cfc43a.28c8e03e_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Is there information on the relative merits of Penta, Svetlana or Eimac tubes? 73 Bo; /archives//html/Amps/2001-09/msg00075.html (6,821 bytes)
9. [AMPS] tubes (score: 1): Author: 2@vc.net (2); Date: Thu, 6 Sep 2001 07:35:57 -0700; // Penta 3-500Z tubes appear to be well made. As I understand it, they are made at several plants in China. cheers, Bob - R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures. end -- FAQ on WWW; /archives//html/Amps/2001-09/msg00076.html (6,523 bytes)
10. [AMPS] tubes (score: 1): Author: W7lr@aol.com (W7lr@aol.com); Date: Tue, 15 Aug 2000 14:17:44 EDT; Both Daily Electronics and RF Parts sell Eimac 3cx800a7 tubes. 73 Bob W7LR in Montana where it is hot and smokey -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Adm; /archives//html/Amps/2000-08/msg00294.html (6,461 bytes)
11. [AMPS] tubes (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 15 Aug 2000 18:30:51 -0400; Ameritron also buys direct from Eimac (a pre-Richardson's monopoly deal) that sells Eimac tubes, even very large tubes. 73, Tom W8JI w8ji@contesting.com -- FAQ on WWW: http://www.contesting.com/FAQ/; /archives//html/Amps/2000-08/msg00295.html (6,675 bytes)
12. [AMPS] TUBES (score: 1): Author: AA9PB@VBE.COM (JIM OR DIANE MANS); Date: Tue, 8 Feb 2000 06:14:36 -0800; This is a multi-part message in MIME format. --=_NextPart_000_0004_01BF71FB.C6205180 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Has anyone had any expe; /archives//html/Amps/2000-02/msg00114.html (7,641 bytes)
13. [AMPS] Tubes (score: 1): Author: sheepdip@continet.com (Larry L. Ravlin); Date: Sun, 12 Sep 1999 09:40:28 -0700; Gentlemen, I have two 4CX5000A's, one tested at 10KW and the other tested at 9.2KW. I like glass tubes better than I like ceramic and would like to trade these for 4-1000A's in an equal trade. Anyone; /archives//html/Amps/1999-09/msg00093.html (7,099 bytes)
14. [AMPS] tubes (score: 1): Author: sheepdip@continet.com (Larry L. Ravlin); Date: Tue, 14 Sep 1999 20:03:35 -0700; Gentlemen, I have one Eimac 4-250A and three Amperex 4-400A's that I would like to trade for good 6146W's or 6JB6's. Larry L. Ravlin AKA (Laurence the Magnificent) "Collins Equipt forever" Ham Radio; /archives//html/Amps/1999-09/msg00114.html (6,973 bytes)
15. [AMPS] tubes (score: 1): Author: vk6apk@eon.net.au (Alek Petkovic); Date: Wed, 15 Sep 1999 11:28:25 +0800; Larry, I'm just on my way out the door heading South for a couple of days. I'll be back by about 0600z Friday. I have a couple of Philips ECG New in boxes 6146W tubes. The date codes are 8713 on both; /archives//html/Amps/1999-09/msg00115.html (8,336 bytes)
16. [AMPS] tubes (score: 1): Author: sheepdip@continet.com (Larry L. Ravlin); Date: Thu, 25 Mar 1999 13:18:57 -0800; Gentlemen, What are the going prices on 4-400's and 4-250's? Larry L. Ravlin AKA (Laurence the Magnificent) "Collins Equipt forever" Ham Radio Operator K0AEY Walterville, Or. sheepdip@continet.com "t; /archives//html/Amps/1999-03/msg00613.html (6,644 bytes)
17. [Amps] Tubes (score: 1): Author: "Artmouton" <k5fnq@cox.net>; Date: Wed, 15 Mar 2006 21:31:28 -0600; I am selling tubes given to me for the "hams" by a neighbor with a commo shop. Proceeds to be contributed to the local club. I brought 4 boxes of small tubes to our Lafayette Hamfest and the club mad; /archives//html/Amps/2006-03/msg00419.html (8,211 bytes)
18. [Amps] tubes (score: 1): Author: "carl s." <carlseye@tampabay.rr.com>; Date: Mon, 3 Apr 2006 16:20:15 -0400; Who can tell me about the 4CX250B tube.??? power ? GG. capabilities, Etc.:: (hf only ) just want to know !!!!! carl / kz5ca _______________________________________________ Amps mailing list Amps@cont; /archives//html/Amps/2006-04/msg00026.html (6,576 bytes)
19. Re: [Amps] tubes (score: 1): Author: Colin Lamb <k7fm@teleport.com>; Date: Mon, 3 Apr 2006 14:13:04 -0700 (GMT-07:00); The 4CX250B is a 250 watt ceramic tube based upon the older 4X150 design. It was not designed for grounded grid service. Like the 4CX1000, the grid is fragile. In the 4-1000, the grid is so stout tha; /archives//html/Amps/2006-04/msg00028.html (8,468 bytes)
20. Re: [Amps] tubes (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Tue, 04 Apr 2006 09:56:26 -0400; If you have a lot of drive you can connect the control grid to the cathode, ground the screen grid and run grounded grid. The linearity will put high mu triodes to shame since there will be very litt; /archives//html/Amps/2006-04/msg00042.html (9,785 bytes)

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