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ECH81=6AJ8 Valvo Germany like new 1960 (6.3ma and 10.6ma)
EF11 RSD Germany NOS 1950's (6.1ma) (tested on Amplitrex)
EF11 Telefunken Germany used/very good 1949 (5.6ma) (tested on Amplitrex)
EF12 Telefunken Germany used/tests like new, stamped top 1940's (sold out)
EF12 Ultron Germany NOS 1950's (3.9ma)
EF183=6EH7 Amperex Holland 1959 "D" getter halo (12ma)
EF183=6EH7 Siemens branded Telefunken NOS 1963 (15ma)
EF22 Mullard and Tungsram NOS
EF40 Mullard France NOS 1961 (3.7ma)
EF40 Philips France NOS 1966 (2 in stock)
EF40 Siemens by Valvo Germany NOS 1956 (3.0ma)
EF41 European Brands NOS (4 in stock)
EF42 NOS (10 in stock)
EF5 NOS (3 in stock)
EF80 Lorenz made in Philips Italy NOS 1967 (7ma)
EF80=6BX6 Mullard UK NOS "D" getter 1959 (7.5ma)
EF80=6BX6 Sylvania Made in England unknown maker NOS 1970's (19.5ma)
EF83 Telefunken <> bottom Germany NOS 1962 (4.0ma Gm=1800)
EF83 Valvo Germany NOS 1962 (4.7ma Gm=1800)
EF85 Philips Miniwatt Holland NOS "D" getter 1961 (3 in stock)