(!!!!) (BEST OVERALL EF804S SINGLE) EF804S Telefunken Germany <> bottom NOS 1957 perfect condition (3.4ma) (oldest EF804S) (V72 / V76 preamp)
(!!!!) (BEST SINGLE) EF804S Telefunken Germany <> bottom NOS 1957 faded printing (4.1mA) (oldest EF804S) (Highest mA and Gm) (V72 / V76 preamp)
(!!!!) (Recommended Single) EF804S Telefunken Germany <> bottom NOS 1965 (3.3ma) (V72 / V76 preamp)
(!!!) (Recommended Single) EF804S Telefunken Germany <> bottom like new 1960 era (2.9ma)
