(!!!!!) (Best Overall Single) 6SC7GTY Tungsol NOS black round plates NOS 1950 era - small chip out of base (2.1ma and 2.2ma)
(!!!!!) (Single) 6V6GT Ken Rad coated glass NOS 1940's (40.5ma)
(!!!!) (5th BEST PAIR) 6SQ7 RCA NOS 1950-1953 (0.9ma and 0.9ma) **
(!!!!) (Best Pair) 1L6 Sylvania NOS 1950 same date codes (20/16 and 19/16)
(!!!!) (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) 5881 Tungsol rebranded Sylvania and GE 1960 era used/test like new (77.3ma and 74.5ma) (close Gm)
(!!!) (BEST PAIR) 7AF7 Sylvania NOS gray round plates NOS 1950-1958 (8.5/8.7ma and 9.2/9.2ma) 1-5% matched (same Gm)
(!!) (Best Pair) 12J5GT RCA branded Zenith NOS 1944 (10.2ma and 10.2ma)
(!!) (Best Single) 7AF7 Sylvania branded Hytron NOS round black plates NOS 1952 (9.6/9.4ma) 1-3% section balance
(!!) (BEST VALUE) 12AY7 GE NOS 1966 (2.3/1.9ma)
(!!) (SINGLE) 5Z3G RCA NOS 1957 (10 in stock) (special price)
(!!) (single) 6SL7GT RCA NOS black plates gray coated glass 1959 (2.0/1.7ma)
(!!) (Single) 6SN7GTB GE branded Raytheon NOS 1970's (10/9.6ma)
(!!) (slightly microphonic pair) JAN-6SL7GT=VT-229 RCA NOS and like new 1940's (2.5/2.4ma and 2.4/2.6ma) 1-3% matched
(!!) (slightly microphonic) 6SL7GT RCA NOS 1950 (2.2/2.3ma) 1-2% section balance
(!!) 6BL7GTA GE NOS "D" getter 1958 (43ma/53ma)
(!) (slightly microphonic) JAN-CRC-6SL7GT RCA NOS black plates 1951 tilted glass (2.0/2.2ma)
(!) (~ Best AZ50 Pair ~) AZ50 Miniwatt Dario France NOS 1954 (rare pair)