(!!!!!) (Best Pair) 12BH7A GE ribbed plates NOS 1967-1980 (11.0/10.8ma and 13/11ma)
(!!!!!) (Good Value Pair) 12BH7A GE ribbed plates NOS 1966-1974 (7.0/9.4ma and 7.0/10.5ma)
(!!!!!) (Recommended Pair) 12BH7A GE gray oval plates NOS 1965 (11/15.5ma and 13.6/11.6ma)
(!!!!) (Best GE single 1968) 12BH7A GE NOS 1968 (15/16ma) 1-2% section balance
(!!) (SINGLE 1953) 12BH7 GE NOS gray oval plates "U" getter 1953 NOS (9/12ma)
