.~ With electron bunching or velocity variation means {3}
84
.~.~ Reflex type (i.e., with repeller electrode)
DEFINITION
Classification: 331/84
(under subclass 81) Subject matter wherein the means controlling the beam of particles comprises a buncher resonator effectively placed in the path of the beam and interacting therewith to cause the particles to be velocity modulated or bunched, a repeller electrode is provided in the path of the bunched particles and is so biased as to reflect the bunched particles and cause them to return to the buncher resonator in proper phase to interact therewith to give additional energy to the resonator and produce sustained oscillations.
SEE OR SEARCH THIS CLASS, SUBCLASS:
80, for beam tube oscillators of the beam sweeping or deflecting type.
92+, for retarding field type (e.g., Barkhausen-Kurz) oscillators wherein the active element is not of the beam type and wherein a cloud of electrons is caused to oscillate about a positively biased grid.
SEE OR SEARCH CLASS
315, Electric Lamp and Discharge Devices: Systems,
5.18+, for combined cathode-ray tube and hollow resonator structure wherein the ray is reflected and returns to and enters the resonator, and subclasses 5.24+ for similar devices wherein the ray returns to but does not enter the resonator. 332, Modulators, appropriate subclasses for retarding field electronic tube type (e.g., Barkhausen-Kurz) modulators.
