(!!!) 6V6G RCA used/good 1940's (33.5ma)
(!!!) 6V6G RCA used/good 1940's (38.4ma)
(!!!) 6V6G RCA used/good 1940's (42ma)
(!!!) 6X5GT RCA black plates NOS 1953 (50/40 and 54/40)
(!!!) 6X5GT RCA NOS 1965 (60/40 and 64/40)
(!!!) 6X5GT RCA NOS 1969 (47/40 and 56/40)
(!!!) GL-5693 GE red can NOS 1954 (3.1ma)
(!!!) JAN-6B4G Raytheon NOS 1940's (83ma)
(!!!) JAN-CTL-6AR6 Tungsol NOS 1951 gray oval plates (88ma)
(!!) (#1 5687 Tungsol used 1961) 5687WA Tungsol bronze plates "O" getter halo used/very good 1961 (33.4/34.8ma)
(!!) (Best Pair 1981) 412A Western Electric NOS "O" getter halo 1981 (53-53/40 x 2 tubes)
(!!) (Best Pair) 412A Western Electric NOS "D" getter halo 1959 (51-52/40 x 2 tubes)
(!!) (Best Pair) 6A7G Marconi Radiotron Canada NOS 1950 era
(!!) (Best Pair) 6A7G Marconi Radiotron Canada NOS 1950 era (47/29 and 47/29)
(!!) (Best Pair) 6CS7 Sylvania NOS (1) RCA "U" getter (1) Philco "O" getter 1960 era (23/11ma and 23/11ma)
(!!) (Best Pair) JAN-CHS-6SL7WGT Sylvania brown base "square getter halo" like new faded printing (2.4/2.6ma and 2.4/2.4ma) 1-3% matched
(!!) (BEST PAIR) JAN-CRC-5693 RCA NOS 1961 (2.9ma/2.9ma)
(!!) (Best Single) 5687 Tungsol rebranded CBS black plates "U" getter NOS 1950's (38/48ma)
(!!) (Best Single) 7N7 Sylvania branded Philco NOS parallel black plates 1940's (7.5/7.9ma)
