(!!!!!) (Best GE Pair) 12BH7A GE NOS gray oval plates large "O" getter 1963-1964 (8.6/10.2ma and 9.0/10.2ma)
(!!!!!) (Best Overall Pair) 12BH7A RCA gray plates NOS 1970 (14.8/15.0ma and 14.2/14.2ma) (Highest mA and Gm)
(!!!!!) (Recommended GE Pair) 12BH7A GE gray oval plates NOS 1963 (8.4/10.8ma and 9.2/10.6ma)
(!!!!!) (Recommended Pair) 12BH7A GE NOS 1960's - 1970's same build (13.8/14ma and 14.8/15ma) (High Ma and Gm)
(!!!!!) (Recommended Pair) 12BH7A RCA gray plates NOS 1960's (9.8/11ma and 9/11ma)
(!!!!!) (Recommended Single) 12BH7A RCA black plates NOS "Square=D" getter halo mid-1950's (9.4/10.6ma)
(!!!!!) (Recommended Single) 12BH7A RCA Motorola NOS 1964 (8.6/10.6ma)
(!!!!!) (Recommended Sylvania Pair) 12BH7A Sylvania NOS 1970 era (9.2/9.4ma and 8.4/9.2ma)
(!!!!) (Best 12BH7A 1957) 12BH7A Sylvania gray oval plates "square=D" getter halo NOS 1957 (11.5/12.5ma)
(!!!!) (Best 12BH7A 1957) 12BH7A Sylvania gray oval plates "square=D" getter halo NOS 1957 (12.4/13.6ma)
(!!!!) (Best GE single 1964) 12BH7A GE NOS gray oval plates "O" getter halo 1964 (14.0/14.4ma) (Highest Ma and Gm)
(!!!!) (Best Single) 12BH7A CBS Black Oval Plates large "O" getter NOS 1960 era (10.8ma/10.8ma) 1-2% section balance
(!!!!) (Best Single) 12BH7A Sylvania NOS pinched plates 1960's (13.0/13.2ma) 1-2% section balance (Highest mA and Gm)
(!!!!) (Good Value Pair) 12BH7A RCA gray ribbed plates like new and used/good 1960's-1970 (8.0/8.5ma and 8.6/9.5ma)
(!!!!) (Recommended Black Plate Single) 12BH7A RCA black plates "O" getter halo NOS 1960 era (10.0/10.2ma) 1-2% section balance
(!!!!) (Recommended Black Plate Single) 12BH7A RCA black plates "O" getter halo NOS 1960 era (10.5/12.2ma)
(!!!!) (Recommended Pair) 12BH7A Sylvania NOS pinched plates 1970 era (8.4.8.8ma and 8.4/9.2ma) (Art Audio, Quicksilver, Rogue, Universla Audio)
(!!!!) (Recommended Pair) 12BH7A Westinghouse NOS 1964
(!!!!) (Recommended Single) 12BH7A Sylvania Silvertone gray oval plates "O" getter halo NOS 1960 era (14/16.4ma) (High Ma and Gm)
(!!!!) 12BH7A GE Zenith NOS NOS 1974 (14.6/16.2ma)
