6T8A GE Canada NOS 1960's (6 in stock)
6T8A Lafayette Japan NOS (6 in stock)
6T8A RCA NOS (4 in stock)
6T8A Sylvania branded Westinghouse NOS 1967 (1 in stock)
6T8A Tungsol NOS 1960's (2 in stock)
6T9 GE branded RCA NOS original boxes (2 in stock)
6T9 GE branded RCA NOS original boxes (3 in stock)
6T9 GE NOS 1960's
6U1 China (output tube in Dayton Audio HTA amp)
6U10 Sylvania branded Zenith used/good 1960's
6U4GT US Brands NOS (3 in stock)
6U5 RCA like new 1970 (bright green eye)
6U5 Sylvania 1940's used/good medium brightness
6U5 Sylvania Tuning Eye NOS 1940's (4 in stock)
6U5 Sylvania Tuning Eye NOS 1940's (bright eye)
6U5 Tungsol Tuning Eye NOS 1949 (bright eye)
6U6GT US Brands NOS (25 in stock)
6U8A Philips by Sylvania NOS 1987 (20.2ma and 7.5ma)
6U8A used/good
6U9 GE Holland NOS 1970's
