LINEAR BEAM TUBE MODULATION SYSTEM USING MODULATION OF FIRST GRID

摘要

A system for operating a linear beam or an O-type microwave tube comprising a linear beam microwave tube having an electron gun with grid electrode for emitting electron beams, a microwave amplifying portion having input and output cavities so as to amplify television video signal carrier waves by the action of said electron beams, a collector for collecting said electron beams; means for supplying said input cavity with carrier waves modulated by television video signals; and means for subjecting said electron beams to density modulation by television video signals in the grid electrodes of the electron gun.