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(!!!) (Best Pair) 1625=VT-136 National Union NOS 1943-1944 (87/40 and 90/40)
(!!!) (BEST PAIR) 18FX6 GE NOS 1961-1967 (84/60 and 86/60)
(!!!) (Best Pair) 26 Super Silvertone ST-14 used/like new 1940's (5.7ma and 6.0ma)
(!!!) (Best Pair) 26 Sylvania branded Zenith black plate NOS 1946 (5.4ma and 5.6ma) (rare)
(!!!) (Best Pair) 30 Brimar BVA made in USA but might be made in UK in white boxes 1940's (3.1ma and 3.3ma)
(!!!) (Best Pair) 35W4 Tungsol NOS 1960 era (54/40 x 2 tubes)
(!!!) (BEST PAIR) 485 National Radio tube engraved base mesh-plate NOS 1930's (6.0ma and 6.4ma) (variant of 27)
(!!!) (Best Pair) 56 National Union rebranded Western Electronics NOS 1940's (6.5ma and 6.9ma) (Highest mA and Gm)
(!!!) (BEST PAIR) 5726=6AL5 RCA NOS 1970 era (47-47/40 and 47-47/40)
(!!!) (BEST PAIR) 5726=6AL5 RCA NOS 1970 era (47-48/40 and 47-47/40)
(!!!) (Best Pair) 5751 GE double mica gray plates NOS 1979-1981 (2.4/2.5ma and 2.3/2.6ma) 1-3% matched (Close Gm)
(!!!) (Best Pair) 5Z4 RCA NOS 1959 (50-50/40 and 51-51/40)
(!!!) (Best Pair) 5Z4 RCA NOS 1959 (51-51/40 and 52-52/40)
(!!!) (Best Pair) 6203 GE NOS 1976-1979 (53-54/40 and 54-54/40)
(!!!) (Best Pair) 6AF4A Sylvania NOS 1965 (22.5ma and 22.8ma)
(!!!) (Best Pair) 6AG7Y RCA brown bottom NOS 1960-1964 (32.3ma and 32.5ma)
(!!!) (Best Pair) 6AH6WA GE NOS 1980's (10.6/11ma)
(!!!) (Best Pair) 6AL5 Tungsol NOS "D" getter 1957-1965 (48-48/40 and 46-48/40)
(!!!) (Best Pair) 6AN8A RCA Motorola NOS 1973 (17.6/14.6ma and 16.5/15.6ma)
(!!!) (Best Pair) 6AU6A Channel Master Hitachi Japan NOS D getter 1960 (8.6ma and 9.2ma)
