(!!!!) (BEST Pair) 6CW4 GE NOS 1966-1970 (117/60 and 118/60) (strong emission)
(!!!!) (BEST Pair) 6CW4 GE NOS 1975-1976 (120/60 and 120/60) (strong emission)
(!!!!) (Best Pair) 6J5GT Ken Rad black round plates NOS 1942 (11ma and 11.6ma) (close Gm)
(!!!!) (Best Pair) 6J5GT Ken Rad black round plates NOS 1942 (8.4ma and 8.4ma)
(!!!!) (Best Pair) 6J5GT Ken Rad black round plates NOS 1942 (9.6ma and 9.8ma)
(!!!!) (Best Pair) 6J5GT Sylvania lightning logo NOS 1945-1946 (7.8ma and 7.7ma)
(!!!!) (Best Pair) 6J5GT Sylvania lightning logo NOS 1945-1946 (8.8ma and 8.6ma) (same Gm)
(!!!!) (Best Pair) 6N7 GE metal can NOS 1954-1955 (3.3/3.1ma and 3.1/3.1ma) 1-2% matched
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1950 (1.0ma and 1.0ma) 1-2% matched **
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1950-1953 (1.0ma and 1.0ma) 1% matched **
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1953 (1.0ma and 1.0ma) 1% matched **
(!!!!) (Best Pair) 7189 Sylvania black plates NOS 1970 era (42ma and 46ma)
(!!!!) (BEST PAIR) 7C5 Sylvania branded International NOS 1960's (39ma and 40ma) (LOKTAL BASE 6V6GT)
(!!!!) (Best Pair) 83 GE NOS 1960's (62-65/40 and 62-63/40)
(!!!!) (Best Pair) CEA-5993 Bendix NOS 1950's (52/40 x 4 sections)
(!!!!) (Best Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 test like new faded printing (2.5/2.2ma and 2.4/2.8ma)
(!!!!) (Best Pair) CV378=GZ37 Mullard NOS 1966 (50-51/40 x 2 tubes) 1% matched
(!!!!) (Best Pair) D3a=7721 Siemens Germany NOS 1978 (32.5/33ma) 1% matched
(!!!!) (Best Pair) JAN-12AT7WC Sylvania black plates NOS 1975-1980 (10/8.6ma and 10.2/9.2ma)
(!!!!) (Best Price) 6AU8 Sylvania NOS (4 for $9.99)