Electronic tube with cylindrical electrodes

Details Electronic tube with cylindrical electrodes Electronic tube with cylindrical electrodes

1974-12-17

1976-03-09

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Electrode and shield structures

Filament or resistance heated electrodes

313346R, 313348, H01J 115, H01J 1908

Patent

active

039433986

ABSTRACT:
The present invention relates to an electronic tube with cylindrical electrodes. In tubes of this kind, where the cathode generally consisting of a wire mesh 1, the space located within same is tightly coupled with the other inter-electrode spaces of the tube. The invention, in order to avert parasitic resonances at the harmonics closest to the operating frequency, which can occur in said space in operation, provides for the arrangement in said space of a certain number of metal sleeves 8, 9 and 10 coaxial with the electrodes, constituting low-inductance coaxial line sections.
Application to high-power, short-wave (20 MHz) triodes for transmitting applications.

REFERENCES:
patent: 2289588 (1942-07-01), Miller
patent: 2928978 (1960-03-01), Morton
patent: 3287597 (1966-11-01), Smith
patent: 3449616 (1969-06-01), Sarrois
patent: 3742292 (1973-06-01), Gerlach et al.

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