6S4 Sylvania black plate triple mica NOS “”D”” getter halo 1954 (28.2ma)

6S4 Sylvania black plate triple mica NOS “”D”” getter halo 1954

28.2ma

Gm=4100

(the 6S4A features high plate current at relatively low plate voltages and is capable
of withstanding high pulse voltages)(Vfil=6.3V @ 600ma)
MAX Ratings: Vplate=550V, Iplate=30ma, Pout=8.5 watts
Typical Operation: Vplate=250V, Vgrid=-8V, Iplate=24ma, Mu=16.5, Gm=4500, Rplate=3700 ohms)

– Woo Audio GES Electrostatic headphone amp