Tubistor

Details Tubistor Tubistor

1977-12-27

1979-08-07

Smith, Alfred E.

Electric lamp and discharge devices

With temperature modifier

For lead-in-seal or stem protection

313302, 313309, 313351, H01J 2900, H01J 102

Patent

active

041639499

ABSTRACT:
The tubistor is a device which incorporates features of both electron tubes and solid state devices such as a transistor and includes extremely close spacing between the multiple conducting elements of the device. The tubistor comprises a section of an oxide-metal composite that has been ion milled to produce inverted cones in the oxide with the emitting metal fibers at the bottom. A conducting layer deposited on the insulating layer surface forms a type of grid. A collector or anode disposed above the grid collects electrons emitted from the emitter when the appropriate potentials are applied to the device.

REFERENCES:
patent: 2287749 (1942-06-01), Slayter
patent: 3453478 (1969-07-01), Shoulders et al.
patent: 3665241 (1972-05-01), Spindt et al.
patent: 3745402 (1973-07-01), Shelton et al.
patent: 3746905 (1973-07-01), Shelton et al.
patent: 3783325 (1974-01-01), Shelton
patent: 3840955 (1974-10-01), Hagood et al.
patent: 3859550 (1975-01-01), Hagood et al.

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