| Here is page two of a two-page article by David Scott entitled "Model Trains Show How To Build Big Electrics." It was published originally in the March 1961 issue of "Popular Science" magazine, page 85. Bottom-Left Photo, Partial Caption: "Model pantograph is an accurate scale reproduction of the collector assembly used on the British Railways 25-kv., AC systems. Although tension of the springs varies with extension, special linkages give constant upward pressure of shoe against wire...." |