• 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.

cathode follower

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olvrkrg

Member
Joined 2003
Hello,

my question might seem somehow strange. If I would like to drive the cathode of a broadcasting tetrode tube that only allows a cathode - heater difference of 150V with lets say +/- 1000V, the heater somehow has to follow. Can this be done if I heat with accus and connect + and - of the accu through a resistor - lets say 1MOhms - with the cathode??? So all the accu would have to follow the cathode voltage. Any ideas if this could work??
 
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olvrkrg

Member
Joined 2003
Does anyone know what it means for an accu to be connected with a signal +/- 1000V at cathode and anode? I only know that this would influence the electric double layer, but I can't estimate how much current I need to heave and drop the potentials. Does anyone know?
 
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