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1. [Amps] Specification Thomson TH-308 (score: 1): Author: W.Posselt@maco.at (Posselt Werner); Date: Tue, 8 Oct 2002 10:35:39 +0200; Hello ! I am looking for a data sheet of the Thomson TH-308 tube. It is a tetrode for UHF usage. Any details highly appreciated! Werner, OE2WPO Please reply to the list and to my address.; /archives//html/Amps/2002-10/msg00065.html (6,423 bytes)
2. [Amps] tube replacement ? (score: 1): Author: Posselt Werner <W.Posselt@maco.at>; Date: Mon, 17 Nov 2003 10:50:28 +0100; Hello! I have an amplifier with 2x 4-400 which has a really big power supply and a very rugged design. The only thing I am missing is the appropriate output power. This lead to the idea to replace th; /archives//html/Amps/2003-11/msg00231.html (6,981 bytes)
3. [Amps] Replace 2x 4-400 with 2x 3-500ZG (score: 1): Author: "Posselt Werner" <W.Posselt@maco.at>; Date: Fri, 2 Jun 2006 10:25:49 +0200; Hello! Is it possible to swap the 4-400s with two 3-500ZG without any further modification? The tubes are operating in grounded Grid configuration. The HV supply is homemade delivering 3,3KV. How muc; /archives//html/Amps/2006-06/msg00031.html (6,486 bytes)
4. [Amps] Kenwood TL-922 soaring bias current in SSB Mode ? (score: 1): Author: "Posselt Werner" <W.Posselt@maco.at>; Date: Wed, 6 Jun 2007 08:05:25 +0200; Hello! I have (again) a problem with a TL-922. In CW (lower HV) on any band in TX mode without any drive power applied the grid current keeps steadily on the preset value by the Zener Diode. While in; /archives//html/Amps/2007-06/msg00030.html (6,828 bytes)

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