Bottlehead Forum
General Category => General Discussion => Topic started by: sbelyo on December 30, 2014, 09:06:48 AM
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I found a tung sol 6DN7 but one side of it tests very low on emissions while the other side tests near new. I'm guessing it's no good for the S.E.X. ?
Side note, the tubes included with my kit test high on both sides