Super power linear beam tetrode switch tube

The tetrode switch tube is a video amplifier with a number of unique features which make it particularly attractive for series modulator service with linear beam devices. The paper will discuss the development of a linear beam tetrode designed for radar modulator service. The tube has a peak video output power of 14 megawatts producing -140 kV pulses at 100 amperes with a pulse duration of 25 microseconds and a duty factor of 0.5 percent. It consists of a gridded convergent linear beam electron gun and a mirror image 100% depressable collector.