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1. [Amps] Negative grid drive (score: 1): Author: "Tom Osborne Sr." <w7why1@gmail.com>; Date: Sun, 2 Aug 2020 17:23:09 -0700; HI All I have an AL-811h and it has been running just fine with about 600 watts out with the amp on 110. Today I turned it on and the grid current went negative with it in standby. Shut it off real q; /archives//html/Amps/2020-08/msg00011.html (6,447 bytes)
2. Re: [Amps] Negative grid drive (score: 1): Author: Jim <jimw7ry@gmail.com>; Date: Sun, 2 Aug 2020 20:02:31 -0500; Shorted, grid to cathode (filament) in one or more of the tubes. Pull them one at a time or install one at a time. Let us know how you do. Thanks 73 Jim W7RY I have an AL-811h and it has been running; /archives//html/Amps/2020-08/msg00012.html (7,217 bytes)

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