1957 Press Photo New High-Frequency Lighting System of Westinghouse

One of the major benefits of the new Westinghouse high-frequency lighting system will be the drastic reduction in size and weight of auxiliary equipment. The new ballast weigh only seven ounces and is far more efficient than its four pound counterpart. At right rear is the heart of the Westinghouse system- a neatly package, transistorized high-frequency converter rated at 1-1/2 kilowatts.

Photo is dated 1957.

Photo measures 10 x 8.25 inches.