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(!!!!) (Best Pair #1) EF804S Telefunken Germany <> bottom gray shield NOS 1961 (3.8/3.9ma)
(!!!!) (BEST SINGLE) EF804S Telefunken Germany <> bottom NOS 1961 (4.0ma) (Highest mA and Gm) (V72 / V76 preamp)
(!!!!) (Best Single) EF804S Telefunken Germany <> bottom NOS 1965 (2.9ma) (V72 / V76 preamp)
EF804 Telefunken Germany NOS 1957 (2.7ma)
EF804 Telefunken Germany NOS 1959 (2.4ma)
EF804 Telefunken Germany NOS 1960's (2.9ma)
EF804 Telefunken Germany NOS 1964 (3.2ma)
EF804 Telefunken Germany NOS 1965 (3.2ma)
EF804 Telefunken NOS made in Berlin 1957 (3.5ma)
