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1. [Amps] Ten-Tec Centurion Mod. 422 Tubes Look Biased on at Turn on (score: 1): Author: n7wbjohn <n7wbjohn@gmail.com>; Date: Mon, 9 Jul 2018 15:28:42 -0700; In standby at power on, reading the front panel meters Plate current reads about 50 mA should be zero Plate voltage about 2400 or 2500V should be 3100 Ig goes negative about 40 mils Four five minutes; /archives//html/Amps/2018-07/msg00028.html (7,184 bytes)
2. Re: [Amps] Ten-Tec Centurion Mod. 422 Tubes Look Biased on at Turn on (score: 1): Author: "Roy Koeppe" <k6xk@ncn.net>; Date: Wed, 11 Jul 2018 10:37:17 -0500; Likely intermittent fil to grid short. Remove one tube at a time. Bet they're Eimac. Luck & 73, Roy "In standby at power on, reading the front panel meters Plate current reads about 50 mA should be z; /archives//html/Amps/2018-07/msg00030.html (7,873 bytes)
3. Re: [Amps] Ten-Tec Centurion Mod. 422 Tubes Look Biased on at Turn on (score: 1): Author: James Colville <jimw7ry@gmail.com>; Date: Mon, 16 Jul 2018 20:53:34 -0500; Sounds like an intermittently shorted tube. Most likely the grid is shorting to the filament (cathode). Let us know. 73 Jim W7RY Sent from Mail for Windows 10 In standby at power on, reading the fron; /archives//html/Amps/2018-07/msg00051.html (8,899 bytes)

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