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(!!) 12BH7A Sylvania NOS pinched plates 1970's (7.4/8.8ma)
(!!) 12BH7A Westinghouse black plates "U" getter used/good 1950's (6.2/7.2ma)
(!) (2nd Best Pair) JHS-6AU6WB Sylvania NOS 1963-1964 (6.0ma and 6.5ma)
(!) (Best Value) EM87 Haltron East Germany NOS (16 in stock)
(!) (Good Value Single) ECF80=6BL8 Telefunken Germany <> bottom like new 1971 (11.6/9.6ma)
(!) (Good Value Single) ECF80=6BL8 Telefunken Germany <> bottom used/good 1964 (10.0/10.2ma)
(!) (Good Value) 12BH7A GE gray oval plates used/good "O" getter 1960 (6.5/7.0ma)
(!) (SINGLE) 7027A RCA NOS 1968 (64ma)
(!) (SINGLE) 7027A RCA NOS 1968 (85ma)
(!) (Single) 7591 EICO Westinghouse used/70% 1961 top edge of base is chipped (42ma and Gm=7350)
(!) (Single) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (14/9ma)
(!) 12BH7A GE gray oval plates "O" getter halo used/good 1964 (7.2ma/8.5ma)
(!) 12BH7A Toshiba rebranded "Bell and Howell Schools" like new 1960's (9/10.4ma)
(READ REVIEW) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (11.5/9.6ma and 12.2/9.5ma) (best sound)
(slightly microphonic) 12BH7 GE Zenith NOS "U" getter 1953 (10.0/10.6ma)
12BH7A GE gray oval plates used/good "U" getter 1950's (7.6/7.8ma)
6AU6WB Sylvania NOS 1968 (6.4ma)
6AU6WB=6136 Sylvania branded Westinghouse NOS 1974 (7.2ma)
6AU6WC Sylvania NOS 1970-1980 (0 in stock)
6AU6WC=6136 GE NOS 1978-1979 (7.7ma)