The Lionel Multi-Control Trainmaster Type-ZW Transformer is a vintage 1950 model designed for O gauge model railroads. With a power type of AC and a wattage of 275W, this black transformer features an analog control system and direction control capabilities. Made of metal and weighing 2 lbs, it measures 12 inches in length and 4 inches in width, making it compatible with analog control systems. This ready-to-go transformer also includes a whistle feature, making it a great addition to any model railroad enthusiast's collection. Untested