H01J25/22 - CPC Classification

Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons; Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone

• H01J25/24 » in which the electron stream is in the axis of the resonator or resonators and is pencil-like before reflection 0
• H01J25/26 » in which the electron stream is coaxial with the axis of the resonator or resonators and is tube-like before reflection 1
• H01J25/28 » in which the electron stream is perpendicular to the axis of the resonator or resonators and is pencil-like before reflection 0
• H01J25/30 » in which the electron stream is perpendicular to the axis of the resonator or resonators and is radial or disc-like before reflection 0

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