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(!!!) 6B4G Tungsol NOS 1940's (81ma)
(!!!) 6SL7WGT Sylvania brown base round black plates like new 1955 no printing (2.6/2.8ma)
(!!!) 6V6G Super Silvertone by Sylvania used/good 1930's (37ma)
(!!!) 6X5GT RCA black plates NOS 1953 (50/40 and 54/40)
(!!!) 6X5GT RCA NOS 1953 (52/40 and 62/40)
(!!!) JAN-CTL-6AR6 Tungsol NOS 1951 gray oval plates (88ma)
(!!) (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 RCA single) 5965 RCA IBM black plates triple mica "D" getter like new 1958 (12.0/12.2ma)
(!!) (Best Single #2) 6SL7GT GE round chrome plates NOS 1969 (2.2/2.3ma) 1-3% section balance (Same Gm)
(!!) (Best Single #2) 6SN7GTB Sylvania branded GM DELCO chrome top NOS 1957 (8.0ma/7.6ma) (High Gm)
(!!) (Best Single) 5687 Tungsol rebranded CBS black plates "U" getter NOS 1950's (38/48ma)
(!!) (Best Single) 6550 Tungsol gray plate with vent holes NOS 1966 (163ma)
(!!) (Best Single) 6SL7GT GE short round chrome plates NOS 1970's (2.9/2.5ma)
(!!) (Best Single) 6SL7GT GE short round chrome plates NOS 1970's (2.9/2.9ma) 1-2% section balance (Highest mA and Gm)
(!!) (Best Single) 7N7 Sylvania branded Philco NOS parallel black plates 1940's (7.5/7.9ma)
(!!) (BEST SINGLE) JAN-CRC-5R4GY RCA brown base NOS 1943-1945 (52/40 and 54/40)
(!!) (Best used single #1) 5998 Tungsol branded IBM black plates used/good 1960 rattle inside base (75/74ma) 1-3% section balance