(!!!!!) (Good Value Pair) 12BH7A Sylvania gray pinched plates NOS and used 1970 era (7.6/8.0.4ma and 7/7ma)
(!!!!!) (Recommended Pair) 12BH7A GE NOS gray oval plates large "U" getter 1957-1960 (10/12ma and 10.2/14.2ma) (McIntosh, Quicksilver, Art Audio)
(!!!!) (Best Single) 12BH7 GE NOS gray oval plates "U" getter 1953 (13.8/14.2) (Quicksilver, Wells, Doshi, McIntosh)
(!!!!) (Best Single) 12BH7A GE ribbed plates NOS 1980 (10.0/10.2ma) 1-3% section balance
(!!!!) (Best Single) 12BH7A Sylvania rebranded GE black oval plates "U" getter NOS 1956 era (11.2/14ma)
(!!!!) (Good Value Pair) 12BH7A GE NOS gray oval plates "o" getter halo 1961-1965 (7.2/6.6ma and 8.4/6.8ma)
(!!!!) (Recommended Single) 12BH7A Sylvania Hammond gray oval plates "D" getter halo used/like new 1959 (10.2/10.6ma)
(!!!!) (Recommended Single) 12BH7A Sylvania Hammond gray oval plates "D" getter halo used/like new 1959 (9/9ma)
(!!!) 12BH7 GE Silvertone gray oval plates NOS "U" getter 1953 (8.2/8.0ma)
(!!!) 12BH7A GE NOS gray oval plates 1960's (9.5/13.5ma)
(!!) 12BH7A Philco Sylvania gray oval plates "O" getter halo used/good 1962 (6.5/7.3ma)
(slightly microphonic) 12BH7 GE Zenith NOS "U" getter 1953 (10.0/10.6ma)
