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(!!!) (Recommended Single) 12BH7A Raytheon black oval plates "D" getter NOS 1950's (9.0ma/8.6ma)
(!!!!) (Single) 12BH7A Sylvania gray oval plates "O" getter NOS 1960 era (11.8/12.2ma)
(!!!) (Single) 12BH7A CBS Oval Black Plates "O" getter used/good 1960 (7.3/9.6ma)
(!!!!) (Single) 12BH7A GE gray oval plates NOS mid-1960's (11.5/16ma)
(!!!!) 12BH7A Westinghouse gray ribbed plates used/good "U" getter 1960 era (8.4/11ma)
12BH7A GE gray oval plates used/good "U" getter 1950's (7.6/7.8ma)
ECC99 JJ (best identical substitute is 12BH7A RCA, Raytheon, Sylvania and GE)
(!!!!) (Recommended Pair) 12BH7A RCA gray ribbed plates NOS 1969 (14/9ma and 13/9.5ma)
(!!!) (Recommended Single) 12BH7A Westinghouse black ribbed plates "U" getter halo 1961 (8.5/10ma)
(!!!!) (Best Single #1) 12BH7A RCA NOS 1964 (13.2/12.4ma)
(!!!!) (Best Pair #1) 12BH7A RCA gray plates NOS 1969 (10.2/10.4ma and 11/12ma)
(!!!) (Recommended Single) 12BH7A CBS Oval Black Plates "O" getter NOS 1960 (11/12.5ma)
(!!!!) (Best Single) 12BH7A GE ribbed plates NOS 1980 (10.0/10.2ma) 1-3% section balance
(!!) (Best Value Single) 12BH7A Hitachi Japan 1970's branded Westinghouse NOS 1984 (11.8/12.9ma) (McIntosh, Quicksilver, Art Audio, Wells)
(!!) (Single) 12BH7 GE Delco gray oval plates "U" getter NOS 1950's (7ma/8ma) (Quicksilver, Wells, Doshi, McIntosh)
(!!!!) (Single) 12BH7A Sylvania Silvertone gray oval plates large "O" getter halo 1960 era NOS (11.5/10.6ma)
(!!) 12BH7A Westinghouse ribbed plates NOS 1963 (9.0/10.8ma)
(!!) 12BH7A RCA used/very good 1960's (9.8/11.6ma)
(!!!!!) (Best Pair #1B) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (11.6/10.8ma and 11.3/11.6ma) 1-3% matched (close Gm) (similar sound to RCA) (rare)
(!!!!!) (Best Pair #3) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (12.6/11ma and 12.8/10.5ma) (close Gm) (similar sound to RCA) (rare) (Copy)
