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(!!!) (PAIR) 6AL5 RCA NOS 1970 era (47-47/40 and 47-47/40)
(!!!) (PAIR) 6AS6 Mullard BVA UK NOS 1974 (4.5ma and 4.4ma) (tubedrve)
(!!!) (PAIR) 6HF5 Sylvania NOS 1970's (96ma and 97ma)
(!!!) (Recommended Pair) 26 GE and Ken Rad NOS same build 1940's (3.9ma and 4.0ma)
(!!!) (Recommended Pair) 26 Sylvania branded Zenith black plate NOS 1946 (4.9ma and 5.0ma) (rare) 1% matched
(!!!) (Recommended Pair) 30 RCA Cunningham engraved base 1930's low hours/test like new (3.3ma and 3.4ma)
(!!!) (Recommended Pair) 56 National Union rebranded Western Electronics NOS 1940's (4.9ma and 5.1ma)
(!!!) (Recommended Pair) 6005W Sylvania JAN black plate clear glass NOS 1971-1979 (53.0ma and 54.6ma)
(!!!) (Recommended Pair) 6AU6A RCA used/test like new 1960's (7.8ma and 8.0ma)
(!!!) (Recommended Pair) 6GK5=6FQ5A Sylvania rebranded Raytheon NOS (11.0ma and 11.4ma)
(!!!) (Recommended Pair) 6J6A Sylvania NOS
(!!!) (Recommended Pair) 71A Sylvania and Sylvania branded Tungsol NOS 1947-1950 same build (30.2ma and 32.4ma) (Highest mA and Gm)
(!!!) (Recommended Pair) 7N7 Sylvania NOS branded GE and RCA 1960-1965 (9.4/8.0ma and 8.0/8.4ma) (close Gm)
(!!!) (Recommended Pair) 8417 GE NOS 1969 and 1986 same build (91ma and 94.6ma)
(!!!) (Recommended Pair) JLRV-6J6WA GE Canada NOS 1960's (6.4/6.6ma and 6.6/6.5ma)
(!!!) (Recommended Pair) JLRV-6J6WA GE Canada NOS 1960's (7.3/6.6ma and 6.8/7.5ma)
(!!!) (Recommended Single 1957) 12AU7A Sylvania gray pinched plates "D" getter halo NOS 1957 (9.2/10.2ma)
(!!!) (Recommended Single) 12AX7A Sylvania NOS 1970's (Gm=2600/3000)
(!!!) (Recommended Single) ER-230=30 Raytheon 1930's used/like new (4.1ma and Gm=800)
(!!!) (Recommended Single) JHS-6AN8A Sylvania NOS 1966 (13.6/16.5ma)
