Modern railway passenger car auxiliary power equipment

Immediately after the close of World War II, the railroads began to order a large number of passenger cars in an effort to retain part of the passenger business that had come to them during the war years. As might have been expected, a large number of different ideas were given a quick try-out and adopted by different railroads. Many of these ideas had as their basis a very large increase in the amount of power which would be required for electric devices on the cars.