(!) 814=VT-154 GE brown base like new 1940”s (118ma) (Highest mA and Gm)

1 tube) GL-814=VT-154 GE brown base like new 1940”s – good getter

118ma

Gm=5350

Tested on Amplitrex

Vplate=500V

Vscreen=300V

Vgrid=-4.5V

NOS Ma = 100ma

NOS Gm = 4500