WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
I am trying to find data on the GU-81m pentode I am realy interested in how much the grid can disipate if I use the tube
in inverting mode and what the cathode voltage/current requirements are.