6ES8 Sylvania NOS 1970's (14.4/19ma)

1 tube) 6ES8 Sylvania NOS 1970's 14.4ma Gm=10,700 19.0ma Gm=13,700 6ES8 has electrical ratings very similar to a 6DJ8=ECC88, 6ES8 have high Gm, low internal capacitances and low noise) (6ES8 were originally designed for used as cascode VHF amplifiers) (Vplate max=130V, Iplate max=22ma, Plate Dissipation max= 1.8watts) (Typical Operation Class A Amp: Vplate=90V, Vgrid=-1.2V, Iplate=15ma, Gm=12500) "Thank you, I received the Telefunken ECC189=6ES8 tubes today. Well packaged, and beautiful sounding valves. Many Thanks, John"