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6F6G RCA Victor used/strong 1945 era (30.6ma) (Gm like new)
6F6G Tungsol used/strong 1940's (34ma) (Gm like new)
6F6GT GE NOS 1952 (32ma)
6F6GT Sylvania used/good 1949 broke off guide pin (32ma)
6F7G Philco engraved base NOS
6F7G RCA Cunningham like new 1930's
6F7G Sylvania NOS 1940's
6F7G US Brands NOS (15 in stock) (BEST PRICE)
6F7G used/good
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)
6FA7 NOS
6FC7=ECC89 Mullard branded Philips NOS 1975 (sold out)
6FD6=6ES6 NOS
6FG7 US Brands NOS (6 in stock)
6FH5 US Brands NOS (2 in stock)
6FH8 US Brands NOS (7 in stock)
6FM7 GE branded RCA used/tests like new
