Electronic tube with cylindrical electrodes
US3943398A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1974 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Dec 17, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2893/0002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.