1) Electron tube 2) Thermionic tube 3) Thermionic vacuum tube 4) Thermionic valve 5) Tube 6) Type of vacuum tube 7) Vacuum tube 
Instrument for generating radio waves in the centimetre range
A vacuum tube in which the flow of electrons is subject to the control of an external magnetic field.
diode vacuum tube consisting of a cylindrical (straight wire) cathode and a coaxial anode, between which a dc (direct current) potential creates an ... [7 related articles]
a crossed-field tube in which both the electron beam and the slow-wave structure are re-entrant
In electronics, a magnetron is a two-eklectrode valve in which the flow of electrons from a large central cathode to a cylindrical-shaped anode is controlled by crossed electrical and magnetic fields. The electrons gyrate in the axial magnetic field, their energy being collected in a series of slot resonators in the face of the anode.
[n] - a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields
magnetron 1. A vacuum tube in which the flow of electrons is manipulated by electric and magnetic fields to generate microwaves. The microwave radiation produced is either pulsed, for use in radar applications, or continuous, as required for microwave cooking. 2. A diode vacuum tube in which the flow of electrons is controlled by an externally app...
noun a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators
Thermionic valve (electron tube) for generating very high-frequency oscillations, used in radar and to produce microwaves in a microwave oven. The flow of electrons from the tube's cathode to one or more anodes is controlled by an applied magnetic field