QUAD 6CG7 6FQ7 AUDIO AMP TUBES BLACK PLATES RAYTHEON 3/NOS 1 USED vintage Nice

3 are black triple plate and test 117% 104% 104% these 3 are also date matched

1 is different plate construction and test 93%

TESTED ON TV-7D/U REBUILT AND CALIBRATED BY PAUL HART OF ROSWELL GEORGIA.