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6AU8 Raytheon black plates "U" getter halo NOS 1955 (2 in stock)
6B4G Philco by Sylvania NOS 1947 (80ma)
6B4G Raytheon NOS 1950 era (94ma)
6B8G Raytheon NOS (1 in stock)
6DW4 Sylvania branded GE tipped top NOS (1 pair)
6DW4 Sylvania tipped top like new
6EA7 GE black base rebranded Zenith 1960 used/good (3.6ma/35ma)
6EM7 RCA black plates NOS 1965 (1.2ma and 30ma)
6EM7 RCA coin-base NOS 1971 (3.2ma/55ma)
6EM7 RCA coin-base used (2.5ma/28ma)
6EM7 Sylvania NOS 1970 (1.5ma/47ma)
6EM7 Sylvania Silvertone NOS 1960's (1.5ma/55ma)
6EN4 US Brands NOS (12 in stock)
6EQ7 US Brands NOS (3 in stock)
6EX6=6CD6GA Raytheon NOS
6GB3A Raytheon NOS (6 in stock)
6GB5 / 6GB5A=EL500 Sylvania Holland NOS 1966-1968 (0 in stock)
6GB5=EL500 RCA France NOS (82/60)
6GK5=6FQ5A GE branded RCA NOS (17.4ma)
6GK5=6FQ5A GE NOS (9ma)
