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6CN7 NOS (6 in stock)
6CR6 US Brands NOS (8 in stock)
6CS6 RCA Brazil 1960's - 1970's (19 in stock)
6CS7 Raytheon by Toshiba Japan gray plates NOS 1970 era (21.5/10.2ma)
6CS7 Tungsol NOS black plates 1960's (21/10ma) (internals like Sylvania)
6CU5 NOS (10 in stock)
6CU6 Sylvania black plate like new condition (54ma)
6CU6 Sylvania black plate NOS (55ma)
6CU6 Sylvania black plate NOS (72ma)
6CU6 Sylvania gray plate NOS (58ma)
6CU6 Sylvania gray plate NOS (87ma)
6CU8 US Brands (15 in stock)
6CW4 GE like new 1980 (120/60)
6CW4 RCA NOS 1970 era (1 in stock)
6CW4 Tungsol NOS (1 in stock)
6CX8 US Brands NOS (14 in stock)
6CX8 US Brands NOS (2 for $5)
6CY7 (sold out)
6D6 Tungsol NOS (77/40)
6D7 Panama green coated glass - flaked off in one area due to old age 1930's (52/31) (rare)