(!!!!) (1 Pair) 408A Western Electric "D" getter NOS 1956-1961 (72/60 and 72/60)
(!!!!) (10 for $22.99) 6AU8 Sylvania NOS
(!!!!) (2nd Best Siemens Single) ECC83=12AX7 Siemens Halske NOS 1966 (1.0/1.1ma) (Gm=1550/1600)
(!!!!) (3rd Best Pair) 27 Philco by Sylvania NOS 1940's (5.9ma and 5.9ma) 1% matched
(!!!!) (3rd Best Pair) 27 Philco by Sylvania NOS 1940's (6.0ma and 6.1ma) 1-2% matched
(!!!!) (Best GE Pair) 6N7 GE metal can NOS 1957 (3.0/2.7ma and 2.9/2.8ma) 1-3% matched
(!!!!) (Best GE Single 1957) 6BK7A GE gray plates NOS "U" getter 1957 (9.8/10.8ma)
(!!!!) (Best GE Single) 6BK7B GE gray plates NOS "U" getter 1974 (8.0/8.8ma)
(!!!!) (Best Overall Pair) 27 Philco by Sylvania NOS 1940's (6.7ma and 6.7ma) 1% matched
(!!!!) (Best Overall Pair) 5814A Philips JAN NOS 1985 (10/9.6ma and 10/9.8ma) 1-2% matched
(!!!!) (Best Overall Single) ECC803S=12AX7 Telefunken Ulm Germany <> bottom NOS 1961 1% section balance (Gm=1800/1800) (1.5/1.5ma)
(!!!!) (Best Pair #2) 6146B RCA NOS 1970-1974 (92.5ma and 92ma) 1-3% matched
(!!!!) (Best Pair 1930's) 30 Sylvania engraved base NOS 1930's (3.2ma and 3.4ma) (same Gm)
(!!!!) (BEST PAIR 1960's) 6DJ8 Sylvania NOS 1960's (17.0/17.8ma and 14.5/19ma)
(!!!!) (Best Pair) 1L6 Sylvania NOS 1950 same date codes (20/16 and 19/16)
(!!!!) (Best Pair) 27 Philco by Sylvania NOS 1940's (6.3ma and 6.3ma) 1% matched
(!!!!) (BEST PAIR) 408A Western Electric NOS 1953 and 1958 (97/60 and 96/60)
(!!!!) (BEST PAIR) 408A Western Electric NOS 1965 and 1967 (91/60 and 90/60)
(!!!!) (BEST PAIR) 408A Western Electric NOS 1971 "D" getter and 1976 "O" getter (98/60 and 101/60) (highest testing pair)
(!!!!) (BEST PAIR) 408A Western Electric NOS 1976 and 1982 (86/60 and 88/60)