Transit-time tubes

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

H01J25/00Transit-time tubes

H01J25/005Gas-filled transit-time tubes H01J25/02Tubes 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 H01J25/025with an electron stream following a helical path H01J25/04Tubes having one or more resonators, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly density modulation H01J25/06Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation H01J25/08with electron stream perpendicular to the axis of the resonator H01J25/10Klystrons H01J25/11Extended interaction Klystrons H01J25/12with pencil-like electron stream in the axis of the resonators H01J25/14with tube-like electron stream coaxial with the axis of the resonators H01J25/16with pencil-like electron stream perpendicular to the axis of the resonators H01J25/18with radial or disc-like electron stream perpendicular to the axis of the resonators H01J25/20having special arrangements in the space between resonators H01J25/22Reflex Klystrons H01J25/24in which the electron stream is in the axis of the resonator or resonators and is pencil-like before reflection H01J25/26in which the electron stream is coaxial with the axis of the resonator or resonators and is tube-like before reflection H01J25/28in which the electron stream is perpendicular to the axis of the resonator or resonators and is pencil-like before reflection H01J25/30in which the electron stream is perpendicular to the axis of the resonator or resonators and is radial or disc-like before reflection H01J25/32Tubes with plural reflection H01J25/34Travelling-wave tubes Tubes in which a travelling wave is simulated at spaced gaps H01J25/36Tubes 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 H01J25/38the forward travelling wave being utilised H01J25/40the backward travelling wave being utilised H01J25/42Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and with a magnet system producing an H-field crossing the E-field H01J25/44the forward travelling wave being utilised H01J25/46the backward travelling wave being utilised H01J25/48Tubes in which two electron streams of different velocities interact with one another H01J25/49Tubes using the parametric principle H01J25/50Magnetrons H01J25/52with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode H01J25/54having only one cavity or other resonator H01J25/55Coaxial cavity magnetrons H01J25/56with interdigital arrangements of anodes H01J25/58having a number of resonators having a composite resonator H01J25/587Multi-cavity magnetrons H01J25/593Rising-sun magnetrons H01J25/60with an electron space having a shape that prevents any electron from moving completely around the cathode or guide electrode Linear magnetrons H01J25/61Hybrid tubes H01J25/62Strophotrons H01J25/64Turbine tubes H01J25/66Tubes with electron stream crossing itself and thereby interacting or interfering with itself H01J25/68Tubes specially designed to act as oscillator with positive grid and retarding field H01J25/70with resonator having distributed inductance with capacitance H01J25/72in which a standing wave or a considerable part thereof is produced along an electrode H01J25/74Tubes specially designed to act as transit-time diode oscillators H01J25/76Dynamic electron-multiplier tubes H01J25/78Tubes with electron stream modulated by deflection in a resonator