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6F6G RCA Cunningham used/good 1947 (31ma) (Gm like new)
6F6G RCA Victor used/strong 1945 era (30.6ma) (Gm like new)
6F6G Tungsol used/strong 1940's (34ma) (Gm like new)
6F6GT Sylvania used/good 1949 broke off guide pin (32ma)
6F8G GE black parallel ribbed plates NOS 1940's (6.2ma/7.2ma)
6F8G GE parallel plates NOS 1940's (8.0ma and 8.4ma)
6F8G RCA gray ribbed staggered plates NOS no printing 1950 era (7ma/8ma)
6F8G RCA Radiotron staggered black ribbed plates used/good 1940's (9.0/7.2ma)
6FG7 US Brands NOS (6 in stock)
6FS5 GE branded RCA NOS (6.5ma)
6FS5 Sylvania branded Dumont NOS (8.2ma)
6FV6 US Brands NOS (12 in stock)
6FV8=6BR8A US Brands NOS (30 in stock)
6FW5 GE rebranded branded RCA NOS (53ma)
6FW5 GE rebranded branded RCA NOS 1966 (80ma)
6G11 US Brands NOS (10 in stock)
6GE5 Sylvania engineering sample like new 1960's in WB getters like new (48ma)
6GM5 Sylvania rebranded GE NOS 1960's (56.5ma)
6GM5 Sylvania rebranded GE NOS 1966 (64.5ma)
6GU7 Magnavox RCA used/like new 1964 (10.2/9.8ma)
