Abstract :
A new concept of an electron tube, believed to have vast potentials, was announced recently by Sylvania Electric Products Inc. The new development, known as the “stacked tube,” is the result of several years´ study by the Sylvania Research Laboratories, culminating in a development contract with the U. S. Navy´s Bureau of Ships, and limited quantities are now being made at the company´s Product Development Laboratories. Kew Gardens, L. I.
