Global Klystrons Market 2024 by Manufacturers, Regions, Type and Application, Forecast to 2030 has complete details about market of Klystrons industry, Klystrons analysis and current trends. A klystron is a specialized linear-beam vacuum tube. In a klystron, an electron beam interacts with radio waves as it passes through resonant cavities, metal boxes along the length of a tube. The electron beam first passes through a cavity to which the input signal is applied. The energy of the electron beam amplifies the signal, and the amplified.