The Bachmann N Scale Hobby Transformer Power Pack Model # 6600 Pic is a vintage DC power pack designed for model railroads and trains. This pre-built steel transformer in brown color is compatible with analog control systems and operates at 120V. Manufactured in 1990 in Hong Kong by Bachmann, this N gauge power pack is ready to go and perfect for hobbyists aged 17 years and up. The model 6600 Pic is a reliable and essential component for enhancing the power and control of your model railroad layout.