• 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.

Big tubes thread

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I'm building a 6c33 these days. I't huge compared to most tubes used in audio...and also it's cheap and has tons of power.
Next i might do a GU-50 PP UL.
I like these big russians tubes, they are not so common, they look great and they cost a fraction from the price of A's or B's 🙂.
What's your favorite "not for audio" tube?
An externally hosted image should be here but it was not working when we last tested it.
 
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