I have 1 Excellent strong new in the Box Amperex Silver plate 6SL7GT tube .
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This tube is an octal-based high mu twin triode with separate indirectly heated cathodes. It is a pre-cursor to the B9A ECC series. It was widely used for input amplification in older audio amplifiers.
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6SL7GT RCA. ‘D’ GETTER, BLACK PLATE. NEW AND UNUSED.
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6SL7GT Double triode valve.
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NOS tubes fall within the Gm characteristic range of an average tube, as published in the RCA RECEIVING TUBE MANUAL, which states "Individual tubes, like any manufactured product, may have characteristics that range above or below the values given.
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Rca black plate 6sl7 La 2/2.1 gm 1.5/1.6 100% avo book is la 2.3 gm 1.6 Thanks for looking
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