GB309241A - Improvements in electric discharge devices - Google Patents

Improvements in electric discharge devices

Info

Publication number
GB309241A
GB309241A GB139228A GB139228A GB309241A GB 309241 A GB309241 A GB 309241A GB 139228 A GB139228 A GB 139228A GB 139228 A GB139228 A GB 139228A GB 309241 A GB309241 A GB 309241A
Authority
GB
United Kingdom
Prior art keywords
cathode
electrodes
detector
uranium
anodes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB139228A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB139228A priority Critical patent/GB309241A/en
Publication of GB309241A publication Critical patent/GB309241A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/20—Selection of substances for gas fillings; Specified operating pressures or temperatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode

Landscapes

  • Measurement Of Radiation (AREA)

Abstract

309,241. Crowne, A. A. J. Jan. 16, 1928. Vacuum tubes.- Radio valves are provided with a plate cathode of a radioactive substance, such as uranium or an alloy, and with a filling of helium, neon and air, preferably in the percentages 10, 5 and 85 respectively. Helical nickel grids B, G and cylindrical anodes A, C may be arranged inside and outside a cylindrical cathode K of uranium to utilize the radiations given off from both sides of the cathode. The electrodes are steadied by a glass disc F and supports D. The cathode is cold in use or may be warmed by a separate heating resistance replacing the electrodes A, B. For use as a single low- or high-frequency amplifier or detector, the two grids, and also the two anodes, are connected together. The two sets of electrodes may be used as two valves, such as two low- or high frequency amplifiers or a high-frequency amplifier and a detector, or a detector and a lowfrequency amplifier, the inner electrodes being used as the first valve except in the last case. Specifications 195,691 and 207,514 are referred to.
GB139228A 1928-01-16 1928-01-16 Improvements in electric discharge devices Expired GB309241A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB139228A GB309241A (en) 1928-01-16 1928-01-16 Improvements in electric discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB139228A GB309241A (en) 1928-01-16 1928-01-16 Improvements in electric discharge devices

Publications (1)

Publication Number Publication Date
GB309241A true GB309241A (en) 1929-04-11

Family

ID=9721184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB139228A Expired GB309241A (en) 1928-01-16 1928-01-16 Improvements in electric discharge devices

Country Status (1)

Country Link
GB (1) GB309241A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492313A (en) * 1943-11-02 1949-12-27 Westinghouse Electric Corp Magnetron
US2517120A (en) * 1946-06-25 1950-08-01 Rca Corp Method of and means for collecting electrical energy of nuclear reactions
US3093567A (en) * 1959-03-30 1963-06-11 Gen Motors Corp Nuclear device for generating electric power

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492313A (en) * 1943-11-02 1949-12-27 Westinghouse Electric Corp Magnetron
US2517120A (en) * 1946-06-25 1950-08-01 Rca Corp Method of and means for collecting electrical energy of nuclear reactions
US3093567A (en) * 1959-03-30 1963-06-11 Gen Motors Corp Nuclear device for generating electric power

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