1 low noise tube) ECC189=6ES8 Amperex Holland "D" getter NOS 1958

12.0ma Gm=11,300

13.4ma Gm=12,400

Tested on Amplitrex

Good Ma = 12ma

Good Gm = 11,000-12,000

- 6ES8 is similar to 6DJ8

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 tubes today. Well packaged, and beautiful sounding valves.
Many Thanks, John"