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(!!!!!) (Best Value Single 1953) GL-6072 GE 5 star triple mica black plates "D" getter halo 1953 used/tests like new (2.8/3.4ma) (same Gm) (V1 guitar amp, mics, Audio Note)
12HG7=12GN7A Sylvania NOS (33ma)
12HG7=12GN7 RCA Big Bottle NOS 1960's (44ma) (rare)
12HG7=12GN7 RCA clear top NOS 1970's (25ma)
(!!!!) (Best GE Single) 6350 GE NOS 1960's (12.2/12.8ma) (same Gm)
(!!!!) (Single) 6DJ8=ECC88 Mullard Holland NOS 1963 (16.6/20.6ma) (Nova)
12HG7=12GN7A Delta Gold Seal Toshiba Japan like new (37ma)
12HG7=12GN7A Westinghouse by Toshiba Japan NOS (50ma)
12HG7=12GN7A Magnavox by Hitachi Japan NOS (34ma)
(!!!) (Best 0verall Single) GB-6350 Sylvania Gold Brand black plates NOS 1963 square "" getter (14/13ma)
(!!) (Single) 12AU7 Tungsol gray ribbed plates D getter NOS 1957 (11.5/8ma)
6AC7 RCA like new 1940's (11.2ma)
6K11=6Q11 GE branded Admiral NOS 1964 (85/80, 90/60, 86/60)
(!!!!) (Best Pair #1) 01A RCA Cunningham engraved base NOS 1930's (3.5ma and 3.4ma) (same Gm)
(!) 75=VT-75 Sylvania Zenith used/good 1930's (27/19)
75=VT-75 Ken Rad Dual-Diode Triode used/good 1930's (26/19)
6D6 National Union used/tests like new 1930's (66/40)
53 Arcturus engraved base used/tests like new 1930's (72/38 and 73/38)
12SF5GT Ken Rad NOS (1.2ma Gm=1800)
(!) (Best Single) 12SF5GT National Union NOS 1950 (2.1ma Gm=1600)
