Heathkit AT-1 Amateur Transmitter Range: 80, 40, 20, 15, 11, 10 meters Tubes: 1 - 6AG7 oscillator-multiplier 1 - 6L6 amplifier-doubler 1 - 5U4G rectifier Panel mounted crystal socket stand-by switch Key click filer A.C. line filtering VFO or crystal excitation - up to 35 watts input Built-in power supply provides 425 volts at 100ma Power requirements: 105-125 Volt A.C. 50-60 cycles 100 watts Size: 8-1/8" high x 13-1/8" wide x 7" deep