This unit is in remarkably clean condition other than the box. The copper color is still very clean and shiny. I did use a volt meter and test it. See photo.

Up for sale is the MRC AMPACK Model 401 train control transformer designed for HO scale model railroads. This unit operates on 120 volts AC power and includes the original box. It has been tested and is in proper working order. Model Railroads & Trains, Power & Control, and Transformers. The Model number is ARC AMPACK Model 401 and it has a scale of 1:87 with a gauge of HO.