AS FOUND IN BOX, MADE IN BROOKLYN NY, HO TOY TRAIN TRANSFORMER, 10 WATTS,  OUTPUT 14 VOLTS DC 100 MA 10 WATT 17 VOLTS AC. PENNANT ELECTRIC COMPANY NY USA. TESTED WITH VOLT METER SHOWS ABOUT 15 VOLTS DC ON THIS METER AT FULL SETTING AND 17 VOLTS ON AC SIDE