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AL-811 problem

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Author Topic: AL-811 problem  (Read 242 times)

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« on: November 08, 2012, 08:35:36 pm »

When I turn the Ameritron AL-811 amp on, the plate current goes to 100 ma and the grid current meter goes negative. I get the same results with all the cables disconnected. When operating the amp I drive it with an FT-847 transceiver running about 100 watts. It has always run well until recently. Any clues to what the problem could be?
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