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(!!!!) (Best Pair 1930's) 30 Sylvania engraved base NOS 1930's (3.2ma and 3.4ma) (same Gm)
(!!!!) (Best Pair) 1L6 Sylvania NOS 1950 same date codes (20/16 and 19/16)
(!!!!) (BEST PAIR) 408A Western Electric NOS "D" getter 1970 (85/60 and 86/60)
(!!!!) (BEST PAIR) 408A Western Electric NOS 1976 and 1982 (86/60 and 88/60)
(!!!!) (Best Pair) 6BQ7A RCA black plates NOS 1967 same date codes (15/14.5ma and 13.5/16.5ma)
(!!!!) (BEST PAIR) 6F8G=VT-99 Raytheon NOS 1945 era (8.6/10.2ma and 9.8/9.0ma)
(!!!!) (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) 7C5 Sylvania branded International NOS 1960's (39ma and 40ma) (LOKTAL BASE 6V6GT)
(!!!!) (Best Pair) CEA-5993 Bendix NOS 1950's (52/40 x 4 sections)
(!!!!) (Best Pair) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (8ma and 8ma) 1-2% matched
(!!!!) (Best Price) 6AU8 Sylvania NOS (4 for $9.99)
(!!!!) (Best Price) 6AU8A RCA NOS (4 for $9.99)
(!!!!) (Best Quad #1) 6SH7 GE metal can NOS 1976 (10.6, 10.6, 10.4, 10.5mA)
(!!!!) (Best Single #2) 6146B GE NOS 1981 (107ma)
(!!!!) (Best Single #2) 6SN7GTB RCA NOS 1961 (9.6/10ma) (same Gm)
(!!!!) (Best Single #2) ECC803S=12AX7 Telefunken Qualitex Ulm Germany <> bottom like new 1964 (1.3/1.5ma and Gm=1600/1800)
(!!!!) (Best Single #3) 6146B GE NOS 1979 (98ma)
