with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode

Full Title

Transit-time tubes, e.g. Klystrons, travelling-wave tubes, magnetrons > Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field > with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode

Child Classifications

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• H01J 2225/54 having only one cavity or other resonator, e.g. neutrode tube
• H01J 2225/58 having a number of resonators; having a composite resonator, e.g. a helix