(!!!) (#1 12BH7A RCA) 12BH7A RCA gray plates NOS 1960's (12.6/14.2ma)
(!!!) (#1 12BH7A RCA) 12BH7A RCA gray plates NOS 1960's (9.2/10.4ma)
(!!!) (#1 12BH7A Single) 12BH7A CBS Black Plates large "U" getter NOS mid-1950's (10ma/10.8ma)
(!!) (#1 12BH7A PAIR) 12BH7A Westinghouse NOS 1964 1-2% matched (similar build and sound to RCA) (matched on Amplitrex)
(!) (#1 12BH7A GE PAIR) 12BH7A GE Amperex NOS 1970 1-2% matched
(!) (#1 12BH7A GE PAIR) 12BH7A GE Amperex NOS 1970 1-2% matched (high Ma and Gm)
(!) (#1 12BH7A GE PAIR) 12BH7A GE NOS 1960's 1-3% matched (strong Ma and Gm)
(!) (#1 12BH7A Tungsol) 12BH7A Tungsol black plates used/tests like new around 1960 (13.6/17ma)
(!) (#1B 12BH7A BEST GE PAIR) 12BH7A GE NOS 1960's 3% matched
(!) (#1B 12BH7A GE PAIR) 12BH7A GE NOS 1960's 1-3% matched
(!) (#3 12BH7A RCA Single) 12BH7A RCA gray plates used/strong 1970 (8.2/11ma)
(!) (#3 12BH7A RCA SINGLE) 12BH7A RCA gray ribbed plates used/good "O" getter 1960's (8.4/9.8ma)
(!) (#4 12BH7A GE PAIR) 12BH7A GE NOS 1960's rebranded Dumont and Raytheon (Best Value)
(!) (- BEST 12BH7A SINGLE) 12BH7A Raytheon Black Plates "D" getter NOS 1959 (8.2/9.6ma)
(!) (Best 12BH7A Single) 12BH7A GE NOS gray oval plates large "O" getter 1963 (9.4/10.8ma)
(!) 12BH7A Raytheon Gray Pinched Plates "O" getter NOS 1963 (9/11ma)
(!) 12BH7A RCA gray ribbed plates used/60-80% 1960's (1 pair)
(!) 12BH7A RCA used/tests like new no printing 1960's (12.2/15.2ma) (high Ma and Gm)
(!) 12BH7A Toshiba rebranded "Bell and Howell Schools" like new 1960's (9/10.4ma)
(#1 12BH7A SYLVANIA PAIR) 12BH7A Sylvania NOS yellow printing 1960's
