CBS Hytron 12AT7WA Red Print Audio Tube - TESTED 72/78 min 55/55 Black Plates

CBS Hytron 12AT7WA Red Print Audio Tube - TESTED 72/78 min 55/55. Triple Micas, Black Plates. Rare 12AT7. Tested good@ 72/78 with a minimum of 55/55.

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