MATCHED QUAD GE 7581A KT66 TESTED STRONG NIB

I HAVE FOR SALE A RARE MATCHED QUAD OF GE 7581A KT66. BEAUTIFUL NOS TUBES - WELL MATCHED. ALL TESTED STRONG. AVO VCM163 TESTED 
READINGS -. NOS IN BOX. TUBE 2 - Ia 76 gm 6.0.

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