• 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.

Someone working on an insane tube project?

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Not much use for tube amps. If you could set up a tube to run at 5KV and 17mA the output impedance would be very high. The output transformer would be impossible.

Now the second one is a different story. I can see the 813's or 845's glowing already. Don't worry, I already have my power transformers, I need big OPT's and they don't show up on Ebay.
 
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