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(!!!) (Best Pair #2) 6146B RCA NOS 1970's (92ma and 91.5ma)
(!!!) (Best Pair #2) 6973 RCA black plate NOS and like new 1959 (44ma and 42.5ma)
(!!!) (BEST PAIR #3) 47 RCA branded ARCTURUS NOS 1940's (40.5ma and 42ma)
(!!!) (Best Pair #3) 6973 Sylvania and Sylvania branded GE gray plate NOS 1970's - 1980 (60ma and 58ma)
(!!!) (Best Pair #3) 6AQ5A GE NOS 1960-1975 (46.5ma and 49.6ma)
(!!!) (Best Pair #3) EL84 Siemens Halske Germany NOS 1963 (47ma and 48.2ma)
(!!!) (Best Pair #3) EL84 Siemens Halske Germany NOS 1969-1971 (54.0ma and 57.6ma) (Highest mA and Gm)
(!!!) (Best Pair from 1959) EL84 Wien Austria same build and sound as Holland 1959 (38ma and 39ma)
(!!!) (Best Pair) 1625 National Union NOS 1944 (90/40 x 2 tubes)
(!!!) (Best Pair) 1625=VT-136 National Union NOS 1943-1944 (87/40 and 90/40)
(!!!) (Best Pair) 6973 Sylvania branded GE gray plates NOS 1970 (44ma and 46ma)
(!!!) (Best Pair) 6F6GT GE coated glass NOS 1951-1952 (36ma and 39.5ma)
(!!!) (Best Pair) 6F6GT Sylvania and Sylvania Philco NOS 1950-1952 (40ma and 41.5ma) (close Gm)
(!!!) (Best Pair) 6F6GT Sylvania branded GE NOS 1962-1964 (39.5ma and 41ma) (close Gm)
(!!!) (BEST PAIR) 6JB6A RCA branded GE NOS 1960's (80ma and 86ma)
(!!!) (Best Pair) 6K6GT GE black plate D getter NOS 1957-1959 (53.5ma and 54ma)
(!!!) (BEST PAIR) 6K6GT Sylvania coated glass NOS 1940's (1) branded Philco (44ma and 44.6ma)
(!!!) (BEST PAIR) 6LF6 Sylvania NOS 1970's short bottle (103ma and 99ma) (close Gm) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
(!!!) (Best Pair) 6V6 Sylvania metal can NOS 1970 era (37.0ma and 37.5ma) 1-2% matched
(!!!) (BEST PAIR) 7233 GE NOS 1965 (102-102/60)
