• 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.

Need TV7 data setting for a Taylor 825 (40watt Power Tx tube) ca. 1947 ( Vf: 7.5V If: 2.0 Amperes)