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Publication of BE480320ApublicationCriticalpatent/BE480320A/xx
H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
H01J25/36—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field