Thread: Motorola 7 inch tabletop
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  #9  
Old 02-27-2018, 10:24 AM
kvflyer kvflyer is offline
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Join Date: Nov 2006
Location: Fernandina Beach, FL
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Just FYI, I had a nasty hum after a few minutes in my VT-71. It was in fact the audio output tube. I guess it had grid emission and took time to show up. Not uncommon in tubes with large, hot heaters.
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