The Tri-ang Power Unit P5 Power Controller for Train Set from the 1960s is a vintage analogue speed controller designed for model railways in 1:76 scale. With a power type of DC and a voltage of 12V, this pre-built controller is ready to go for a train set enthusiast looking to add a touch of nostalgia to their collection. The plastic material and 100W wattage make it a durable and reliable choice for controlling the speed of your model train. Perfect for collectors and hobbyists alike, this vintage controller brings a piece of bygone era to life. This item is untested so not sure if it works Please study pics