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(!!!!) (Best Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (7.6ma)
(!!!!) (Best Pair) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (8ma and 8ma) 1-2% matched
(!!!!) (Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (7.0ma)
(!!!) (PAIR) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (7.2ma and 7.2ma)
(!) ECC82=12AU7 Valvo Holland used/good 75-90% 1968 (7.8/9.0ma)
6T8A Sylvania branded Westinghouse NOS 1967 (1 in stock)
6T8A Lafayette Japan NOS (6 in stock)
6T8A RCA NOS (4 in stock)
6688=E180F National UK black plate NOS probably made by Amperex (9ma)
EF40 Siemens by Valvo Germany NOS 1956 (3.0ma)
6688=E180F National UK gray plate NOS probably made by Amperex (16ma)
(!!!!) (Single) EF86 Philips Miniwatt Holland NOS 1963 (2.9ma)
(!!!) (Best Pair) 6AH6WA GE NOS 1980's (10.6/11ma)
(!!!) (Best Value Single) ECC85=6AQ8 Philips Holland NOS 1975 (10/17ma)
(!!) (PAIR) 6CB6A RCA Tektronix Checked NOS (8.0ma and 8.3ma)
6CB6A RCA NOS 1960 (11.6ma)
6CB6A RCA NOS 1969 (11ma)
(!!) (PAIR) 6CB6A RCA NOS (8.2ma and 8.5ma)
6BZ6 US Brands (15 in stock)
6BZ6 Tungsol D getter NOS 1950's (90/60)