Heathkit Warrior Kilowatt Linear Amplifier Band coverage: 80, 40, 20, 15, 10 meters Maximum power input: SSB-1000 watts P.E.P., CW-1000 watts, AM-400 watts (500 watts using controlled-carrier modulation), RTTY-650 watts Output circuit: Variable pi-network (50 to 75 ohms) Input circuit: Broad banded--requires no tuning Driving power required: 50 to 75 watts--depending on frequency Input impedance: 50 to 75 ohms Panel metering: Switch-selected, grid current, plate current, high voltage and relative power output for ease of loading Tubes: 4-811A 2-866A Size: 19½" W. x 11 1/8" H. x 16" D