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(!!!) (Best Single) 6L6GC RCA black plate NOS 1968 (72.5ma)
(!!!) (Best Single) 6SJ7 GE NOS 1953 (3.4mA)
(!!!) (Best Single) 6SL7GT Sylvania round black plates NOS 1960's (2.3/2.2ma) (Same Gm)
(!!!) (Best Single) 6SN7GT Tungsol parallel gray plates NOS 1953 burgundy base double large "O" mica (9/10ma) (rare)
(!!!) (Best Single) 6U8A GE Motorola NOS 1977 (15.2ma/9ma)
(!!!) (Best Single) 7025 Sylvania NOS 1970's (Gm=2200/2300 and 1.4/1.5ma)
(!!!) (Best Single) 7247=12DW7 Mullard UK rebranded RCA NOS 1972 (1.6ma and 14.5ma)
(!!!) (Best Single) 807 Mullard UK Amperex NOS 1966 (69ma)
(!!!) (Best Single) 812A RCA 1960's rebranded as Amperex NOS 1979 slightly tilted glass a few scratches on base
(!!!) (Best Single) 8417 Sylvania NOS (121ma)
(!!!) (Best Single) 8417 Sylvania NOS 1970 era (111ma)
(!!!) (Best Single) CK5687WA Raytheon black plates "O" getter like new 1960 (35/38ma)
(!!!) (Best Single) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 (Premium 6BL8 SUB) (Highest mA and Gm)
(!!!) (Best Single) EC86 Amperex Bugle Boy Germany by Valvo 1959 (12.6ma)
(!!!) (Best Single) EC86 Amperex Bugle Boy Germany by Valvo 1959 (13.8ma)
(!!!) (Best Single) EC92=6AB4 Siemens Halske Germany branded Mullard NOS 1964 (10ma) (mic)
(!!!) (Best Single) ECC83=12AX7 Siemens Halske Germany NOS 1966 (162 Series) (Gm=1500/1600 and 1.0/1.1ma)
(!!!) (Best Single) ECC85=6AQ8 RCA Holland NOS 1968 (17.4/23.3ma) (Highest mA and Gm)
(!!!) (Best Single) ECH81=6AJ8 Mullard Holland NOS 1962 (6.8ma and 13.5ma)
(!!!) (BEST SINGLE) ECL82 Philips Miniwatt Holland NOS 1960 (2.1ma and 27ma)
