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6EH7=EF183 GE NOS ( 5 in stock)
6EM7 GE Amperex NOS 1970's (2.4ma/34ma)
6EM7 GE Canada NOS 1960's (2.9ma/30ma)
6EM7 RCA NOS 1965 (4.2ma/31ma)
6EN4 US Brands NOS (12 in stock)
6EQ7 US Brands NOS (3 in stock)
6EW7 RCA BIG BOTTLE black plates NOS 1961 era (5.4/42ma)
6EW7 RCA BIG BOTTLE NOS 1960's (5.6/36ma)
6F5 GE Amperex metal can NOS (1.0ma Gm=1500)
6F5 GE metal can NOS 1946 (1.2ma Gm=1700)
6F5 RCA metal can NOS 1950's (1.0ma Gm=1500)
6F5 RCA metal can NOS 1973 (1.1ma Gm=1500)
6F5 RCA Victor metal can used/good 1940's (0.6ma Gm=900)
6F5 Sylvania metal can NOS 1954 (1.0ma Gm=1500)
6F5 US Brands metal can NOS (9 in stock)
6F7G Philco engraved base NOS
6F7G US Brands NOS (15 in stock) (BEST PRICE)
6FG7 US Brands NOS (6 in stock)
6GB5 / 6GB5A=EL500 Sylvania Holland NOS 1966-1968 (0 in stock)
6GB5=EL500 RCA France NOS (82/60)
