New products

Modular Cathode-Ray Oscillograph. The experimental unit, identical in performance and operation to Du Mont´s newly developed type 350 cathode-ray oscillograph, was demonstrated at the Institute of Radio Engineers Show, Kingsbridge Armory, New York, N. Y. The modular oscillograph is the latest in the long list of innovations by Du Mont during 25 years of pioneering in electronics, including the first commercially practical cathode-ray tube and the first all electronic television receiver. Developed as a mass production technique by the United States Bureau of Standards, under contract to the United States Navy Bureau of Aeronautics, and by American Car and Foundry Electronics, the modular design uses components printed on ceramic wafers. Each module represents a complete circuit element and is wired into its proper position. The circuits are connected by printed wiring. The combination of modular construction and printed wiring affords complete uniformity of circuitry, rugged construction, and excellent environmental characteristics. Outstanding features of a modular constructed instrument, according to Du Mont engineers, are the simplicity and rapidity of maintenance and repair. Instruments are repaired simply by discarding a faulty module and replacing it with a new one.