• 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.

6384s and what to do with them....

The dealers are asking ~$100 per tube! But if you decide to keep them I’d watch the screen voltage and dissipation carefully if used in a circuit designed for 6L6Gc; according to the specs the 6384’s screen is more fragile (lower max voltage and dissipation) than the screen of a 6L6GC.