For those who have not read the question and answer section on the Ebay listing here is the info; Freq range 535-1620 Khz. Height= 84" Width= 34" Depth= 33" Weight 1500 lbs with iron. 220 volts AC single phase, 3200 watts at 1KW (Like a hot water tank) Uses 4 4-400A tubes. Phil Vourtsis Pres.- New Jersey Antique Radio Club