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Total 7 documents matching your query.

1. [Amps] Different 3-500Z amplifiers (score: 1): Author: Paul Baldock <paul@paulbaldock.com>; Date: Mon, 27 May 2013 19:05:05 -0700; I have 2 amps with 3-500Zs. The 3-500Z's have Eimac labeling. The anode of these has vertical fins. I just acquired another amp with 3-500Zs. These tubes have no lebeling and have an anode with a hor; /archives//html/Amps/2013-05/msg00185.html (8,404 bytes)
2. Re: [Amps] Different 3-500Z amplifiers (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Tue, 28 May 2013 10:43:29 -0400; Metal anodes were produced by Eimac and China. Graphite anodes were/are produced by Eimac, Amperex, Philps, and China. Carl KM1H I have 2 amps with 3-500Zs. The 3-500Z's have Eimac labeling. The anod; /archives//html/Amps/2013-05/msg00188.html (10,118 bytes)
3. Re: [Amps] Different 3-500Z amplifiers (score: 1): Author: "David Craig" <davidhcraig@verizon.net>; Date: Tue, 28 May 2013 11:16:22 -0400; IMHO the graphite anode version puts out & maintains WAY MORE heat than the good old moly style. Just noticed recently RF Parts has a mention about that too. Dave N3DB Metal anodes were produced by E; /archives//html/Amps/2013-05/msg00191.html (11,047 bytes)
4. Re: [Amps] Different 3-500Z amplifiers (score: 1): Author: "Peter Voelpel" <dj7ww@t-online.de>; Date: Tue, 28 May 2013 17:42:33 +0200; The generated heat is a function of plate dissipation, not of the plate material. Certainly it takes longer for a thick anode structure to cool down. 73 Peter IMHO the graphite anode version puts out; /archives//html/Amps/2013-05/msg00192.html (11,427 bytes)
5. Re: [Amps] Different 3-500Z amplifiers (score: 1): Author: Paul Baldock <paul@paulbaldock.com>; Date: Tue, 28 May 2013 10:55:02 -0700; Graphite anodes were/are produced by Eimac, Amperex, Philps, and China. These particular tubes have NO labeling. Does that suggest China? - Paul _______________________________________________ Amps; /archives//html/Amps/2013-05/msg00194.html (9,266 bytes)
6. Re: [Amps] Different 3-500Z amplifiers (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Tue, 28 May 2013 15:49:38 -0400; Heat dissipation is the same for identical power but the graphite version takes longer to reach that point, retains it a lot longer, and should be given an extra few minutes of fan time before shutti; /archives//html/Amps/2013-05/msg00195.html (12,303 bytes)
7. Re: [Amps] Different 3-500Z amplifiers (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Tue, 28 May 2013 17:56:56 -0400; Could have worn off or shipped that way. Years ago I bought a CBers SB-220 with 6 no name's in them that were all perfect but construction looked different than the current versions. They are still r; /archives//html/Amps/2013-05/msg00197.html (10,073 bytes)

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