(!!!!!) (Best Single) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 tests like new (2.7/2.7ma) (1-2% section balance)
(!!!!!) (Best Value Single) 6072 GE branded RCA triple mica black plates "O" getter halo 1960 used/good (2.0/2.0ma) (preamp, V1 position in amp)
(!!!!!) (Single) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new (2.8/3.6ma) (mic grade)
(!!!!!) (Single) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new - faded printing (2.7/2.5ma) (mic grade)
(!!!!) (2nd Best Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/test like new faded printing (2.6/2.7ma and 2.7/2.8ma) 1-3% matched (Same Gm)
(!!!!) (Best Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/test like new faded printing (2.8/2.9ma and 2.8/2.9ma) 1% matched
(!!!!) (Best Single 1957) JG-5751WA GE NOS black plates triple mica U getter halo 1957 (2.3/2.7ma) (High mA and Gm)
(!!!!) (Best Single 1958) 5751 Sylvania black plates triple mica D getter halo 1958 like new (2.5/2.3ma)
(!!!!) (Best Single) 5751 Siemens Halske Germany triple mica NOS 1966 (2.6/3.0ma)
(!!!!) (Best Value Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/test like new (2.1/2.0ma and 2.1/2.1ma) 1-2% matched (Same Gm)
(!!!!) (Best Value Single) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/good (2.0/2.1ma)
(!!!!) (PAIR) 5751 Hitachi Japan glossy black ribbed plates triple mica double D getters 1960's (2.0/2.2ma and 1.8/2.2ma) (rare)
(!!!!) (Recommended Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/test like new (2.4/2.8ma and 2.5/2.6ma) 1-3% matched (same Gm)
(!!!!) (Recommended Pair) JRC-5751 RCA black plates test like new 1960's faded printing (2.8/2.7ma and 2.5/2.5ma) (high Gm)
(!!!!) (Recommended Single) JG-5751WA GE black plates triple mica D getter 1958 like new (2.6/2.6ma) 1% section balance
(!!!!) (Recommended Single) JG-5751WA GE black plates triple mica D getter 1958 like new (2.9/2.8ma)
(!!!!) (Recommended Single) JG-5751WA GE NOS black plates triple mica D getter halo 1955 (2.1/2.5ma)
(!!!) (Best Overall Single) E81CC=12AT7 Siemens double mica NOS 1976 (11.4/12ma) (high Ma and Gm)
(!!!) (Best Single #2) 6688=E180F Amperex PQ USA NOS 1965 (15.2ma)
(!!!) (Best Single 1956) JG-5670WA GE triple mica with D getter NOS 1956 (7.8/7.0ma)
