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6T9 GE NOS 1960's
6U1 China (output tube in Dayton Audio HTA amp)
6U10 Sylvania NOS in white box (
6U4GT US Brands NOS (3 in stock)
6U5 Sylvania 1940's used/good medium brightness
6U5 Sylvania NOS 1970's slightly tilted glass
6U5 Sylvania Tuning Eye NOS 1940's (1 in stock) (bright eye)
6U5 Tungsol Tuning Eye NOS 1949 (bright eye)
6U6GT US Brands NOS (25 in stock)
6U8A Philips by Sylvania NOS 1980's (10 in stock)
6U8A used/good
6U9 GE Holland NOS 1970's
6V3A NOS
6V6GT Westinghouse NOS 1962 (41ma)
6V6GTA Westinghouse tests like new 1967 in white box (44ma) (nice construction)
6V7G Sylvania branded GM GENUINE PARTS engraved base tests like new
6V7G Sylvania NOS 1940's reboxed
6V7G Tungsol NOS 1940's
6V7G US Brands NOS 1940's (15 in stock)
6V8 NOS
