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6N7=VT-96 RCA used/test like new mid-1940's (3.1/3.2ma) 1-2% section balance
6P5GT Westinghouse NOS 1960 era (62/36)
6R8 Raytheon NOS 1950-1951 (4 in stock)
6S4 Sylvania black plate triple mica NOS "D" getter halo 1954 (28.2ma)
6S4A RCA branded Sylvania black plate NOS 1960 era (20.6ma)
6SL7GT Brimar NOS black base black plates 1950's (2.2/2.4ma) (slightly microphonic)
6U5 Sylvania 1940's used/good medium brightness
6U5 Tungsol Tuning Eye NOS 1949 (bright eye)
6V6GT CBS Hytron coated glass NOS 1955 (34.7ma)
6V6GT GE black round plate used/good 1953 hairline crack in base (35ma)
6V6GT Westinghouse NOS 1962 (41ma)
6V6GTA Westinghouse tests like new 1967 in white box (44ma) (nice construction)
6X4 IEC Electron Japan used/tests like new 1960's (60/40 and 62/40)
6X4WA GE black plates rebranded National NOS (55/40 and 56/40)
6X5GT GE used/good 1958 (48/40 and 50/40)
6X5GT GE used/good 1960 (47/40 and 48/40)
6X5GT Ken Rad 1940's used/good (51/40 and 53/40) (RCA construction)
6X5GT Philco by Sylvania used/good 1940's tilted top mica (54/40 and 60/40)
6X5GT Sylvania chrome top used/good 1956 (47/40 and 50/40)
6X5GT US Brands used/good (10 in stock)
