Radio News Magazine, January, 1948

The caption for this cover photo reads:

Spot welding parts for tiny reflex klystrons in the research laboratories of Sylvania Electric products Inc. at Flushing, New York. The tube measures only 3 inches overall and is designed for 6 and 15 centimeter applications.

This issue of Radio News included articles on guided-missile technology and thermistors ("A New Electronic Component") as well as the usual features on radio topics.