A device to generate, amplify or receive electrical oscillations of short waves and very short waves

摘要

A device to generate, amplify or receive electrical oscillations of short and very short waves, for example, shorter than 10 m, and up to 1 m. equipped with an electric discharge tube and characterized in that the cathode of this tube is covered by an emitter layer composed of one or more alkali earth oxide obtained by precipitating a vapor of an alkali earth metal and oxidizing it, it being possible this device also the characteristic that serves to transmit signals modulating a carrier wave pulse-shaped character variable time.