US PATENT SUBCLASS 331 / 104
TRANSIT TIME OSCILLATOR
Current as of: June, 1999
Click HD for Main Headings
Click for All Classes
DEFINITION
Classification: 331/104
(under the class definition) Subject matter wherein the oscillator comprises an electron tube, having input and output electrodes, and a frequency determining network effectively coupled between the output and input electrodes and wherein the electrode spacing or the electrode biasing potentials, or both, are so chosen that the time of flight or transit angle of the electrons between the electrodes is an appreciable part of a cycle of the generated oscillations, the arrangement being such that energy is continuously supplied to the frequency determining network in proper phase to sustain oscillations.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5, for magnetron type oscillators having automatic frequency control and wherein the active element may relay on electron transit time effects to generate oscillations.
6+, for beam tube oscillators (e.g., Klyston) of the velocity modulated type having automatic frequency stabilization.
79+, for beam tube oscillators wherein electron transit time effects are utilized to generate oscillations.
86+, for oscillators utilizing a magnetically controlled space discharge device, e.g., magnetron, which device may be of the electron transit type. 92+, for retarding field type oscillators (e.g., Barkhausen-Kurz) wherein the transit time effects of electrons oscillating about a positive grid are utilized to generate oscillations.
