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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)
EF85=6BY7 Siemens branded Telefunken NOS 1969 (3 in stock)
EF89=6DA6 Philips Miniwatt Holland used/good 1960 (7.6ma)
EF89=6DA6 Telefunken Germany <> bottom used/good 1963 (6.6ma)
EF9 Miniwatt used/good 1940's
EF92 Mullard England used/good 1958 (80/60)
EH90=6CS6 Valvo by Mullard UK NOS 1964-1965 (3 in stock)
EL12 Telefunken used/tests like new 1951 (74ma)
EL38 Mullard like new 1965 (122ma) (tested on Amplitrex)
EL3N Mazda France Red Series NOS 1950 era (1 in stock)
EL83 Tesla like new 1971 (64ma)
EL83 Valvo France NOS 1961 (47ma)
EM4 Miniwatt Dario France use/tests like new "clear glass" 1950's (yellow eye)
EM4 Miniwatt Holland NOS 1950's (2 in stock)
EM4 Philips Miniwatt Holland gold coated glass - original boxes 1950-1955 (bright eyes) (3 in stock)
EM4 Philips Miniwatt Holland or Austria NOS red coated glass 1950's (8 in stock)
EM4 Tronal Philips Austria NOS red coated glass 1955 (bright green eye)
