(!!!!!) (Best Sylvania Pair) 12BH7A Sylvania NOS 1970 era (11.5/12.6ma and 12.5/13.5ma) 1-5% matched
(!!!!!) (Recommended Pair) 12BH7A GE gray oval plates "O" getter 1963 (12/12.5ma and 12/14ma)
(!!!!!) (Recommended Pair) 12BH7A GE NOS gray oval plates 1962-1965 (8.0/9.0ma and 8.6/9.2ma)
(!!!!!) (Recommended Pair) 12BH7A GE NOS gray oval plates large "O" getter 1962 (9.0/10.0ma and 9.6/10.4ma)
(!!!!!) (Recommended Pair) 12BH7A Westinghouse NOS 1963-1964 (9.2/9.3ma and 8.8/9.0ma) (similar to RCA)
(!!!!) (Best 12BH7A 1960 era) 12BH7A Sylvania gray oval plates "square=D" getter halo NOS 1960 era (9.6/9.8ma)
(!!!!) (BEST QUAD) 12BH7A Sylvania NOS 1960's - 1970's 1-3% matched
(!!!!) (Best RCA Single) 12BH7A RCA gray plates NOS "O" getter halo 1960's (10.5/12.8ma)
(!!!!) (Best Single) 12BH7A Sylvania gray oval plates "O" getter halo NOS early 1960's (11.8/12.1ma)
(!!!!) (Best Value Pair) 12BH7A Sylvania branded Philips NOS pinched plates 1982 (7.8/8.8ma and 8.2/8.8ma) (Same Gm) (Art Audio, Quicksilver, Rogue, Universal Audio)
(!!!!) (Best Value Pair) 12BH7A Sylvania branded Philips NOS pinched plates 1982 (8.4/9.4ma and 8.7/9.2ma) (Same Gm) (Art Audio, Quicksilver, Rogue, Universal Audio)
(!!!!) (Good Value Single) 12BH7A RCA gray plates low hours like new 1973 (9.0/11.8ma)
(!!!!) (Recommended Pair) 12BH7A GE NOS 1969-1976 (10.6/10.8ma and 11.6/12.0ma)
(!!!!) (Recommended Pair) 12BH7A GE NOS 1969-1977 (10.6/11.4ma and 10.4/11.6ma)
(!!!!) (Recommended Pair) 12BH7A Sylvania NOS 1960's - 1970's (9/10.6ma and 9/10.4ma) 1-3% matched
(!!!!) (Recommended Pair) 12BH7A Sylvania NOS pinched plates 1960's - 1970's (11/12ma and 10.5/13ma)
(!!!!) (Recommended Pair) 12BH7A Westinghouse NOS "O" getter 1964 (8.0/8.2ma and 8.0/9.6ma) (similar to RCA)
(!!!!) (Recommended Single) 12BH7A RCA gray ribbed plates NOS 1969 (9.5/11ma)
(!!!!) (Recommended Single) 12BH7A Sylvania gray oval plates "square=D" getter halo NOS 1960 era (12.2/12.6ma)
(!!!!) 12BH7A Sylvania pinched plates NOS 1966 (10.5/15.4ma)
