Electric lamp and discharge devices – With radioactive material
Patent
1977-01-26
1977-12-27
Mullins, James B.
Electric lamp and discharge devices
With radioactive material
313 55, H01J 3500
Patent
active
040656900
ABSTRACT:
An X-ray tube has a control grid located to cover a filament which is insulatingly mounted on a first focusing electrode. The control grid is electrically connected to the first focusing electrode. A second focusing electrode is so mounted on the first focusing electrode through an insulator that it covers the control grid. The second focusing electrode is made at the same potential level with that of the filament.
REFERENCES:
patent: 2108573 (1938-02-01), After
Hostetter Darwin R.
Mullins James B.
Tokyo Shibaura Electric Co. Ltd.
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