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(!!!!!) (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)
(!!!!!) (Best Pair #4) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (16/12ma and 13.0/12.9ma) (close Gm) (similar sound to RCA) (rare)
(!!!!!) (Best Pair #5) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (8.8/9.8ma and 8.8/9.3ma) 1-3% matched (similar sound to RCA) (rare) (McIntosh, VTL, Manley, Quicksilver)
(!!!!!) (Recommended Pair) 12BH7A GE ribbed plates NOS 1970's (9.6/10.4ma and 8.2/9.6ma) (sweet sound)
(!!!!!) (Single) 12BH7 Super Radiotron Australia gray ribbed plates NOS 1960's (9.8/14.2ma) (similar sound to RCA) (McIntosh, VTL, Manley, Quicksilver)
(!!!!) (Best Single #1) 12BH7A RCA NOS 1964 (13.2/12.4ma)
(!!!!) (Best Single #2) 12BH7A RCA NOS 1963 (10.6/11.6ma)
(!!!!) (Best Value Single) 12BH7A RCA EI Yugo smooth plates NOS 1970's (11.5/13.2ma)
(!!!!) (Recommended Pair) 12BH7A GE branded Zenith and Daystrom gray oval plates "O" getter NOS 1960's (11.0/11.3ma and 10.3/10.5ma)
(!!!!) (Recommended Pair) 12BH7A Sylvania gray pinched plates NOS 1960's-1970's (9.6/10.8ma and 7.5/11ma)
(!!!!) (Recommended Pair) 12BH7A Westinghouse black ribbed plates "U getter halo 1961-1962 (8.5/10ma and 7.5/9.5ma)
(!!!!) (Single 1950's) 12BH7A RCA branded Westinghouse narrow black plates NOS "U" getter mid-1950's (10.6/7.4ma) (1st series made)
(!!!!) (Single) 12BH7 Sylvania Philco black oval plates "D" getter used/good 1953 (9.8/9.5ma) (Same Gm)
(!!!!) (Single) 12BH7 Tungsol branded Shield gray oval plates "U" getter halo NOS 1961 (11.8/16.5ma) (Highest mA and Gm)
(!!!!) (Single) 12BH7A GE gray oval plates NOS mid-1960's (11.5/16ma)
(!!!!) (Single) 12BH7A Sylvania gray oval plates "O" getter NOS 1960 era (11.8/12.2ma)
(!!!!) (Single) 12BH7A Sylvania Silvertone gray oval plates large "O" getter halo 1960 era NOS (11.5/10.6ma)
(!!!!) (Single) 12BH7A Westinghouse black plates "D" getter NOS 1961 (6.2/7.0ma)
(!!!!) 12BH7A Westinghouse gray ribbed plates used/good "U" getter 1960 era (8.4/11ma)
