GB697559A - Improvements in circuits comprising electric discharge tubes of the electron-beam type - Google Patents

Improvements in circuits comprising electric discharge tubes of the electron-beam type

Info

Publication number
GB697559A
GB697559A GB16332/51A GB1633251A GB697559A GB 697559 A GB697559 A GB 697559A GB 16332/51 A GB16332/51 A GB 16332/51A GB 1633251 A GB1633251 A GB 1633251A GB 697559 A GB697559 A GB 697559A
Authority
GB
United Kingdom
Prior art keywords
cage
electron
circuits
electric discharge
beam type
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
GB16332/51A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB697559A publication Critical patent/GB697559A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
    • H01J21/14—Tubes with means for concentrating the electron stream, e.g. beam tetrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0029—Electron beam tubes

Landscapes

  • Particle Accelerators (AREA)

Abstract

697,559. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 10, 1951 [July 13, 1950], No. 16332/51. Class 39(i) A beam from electrodes 1, 2, 3 is directed into a " cage " 9 wherein a space-charge depression of potential occurs. If the beam intensity is high the depression causes most of the electrons in the beam to be reflected to output electrode 11; if it is low, electrons can pass through the cage and reach second output electrode 10. Thus if the beam is modulated in intensity by grid 2, the space-charge effect enhances the modulation of the current collected by electrode 11 and the effective mutual conductance is thereby increased. The cage 9 is at cathode potential or slightly negative. Separate beam-forming plates may be provided.
GB16332/51A 1950-07-13 1951-07-10 Improvements in circuits comprising electric discharge tubes of the electron-beam type Expired GB697559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL697559X 1950-07-13

Publications (1)

Publication Number Publication Date
GB697559A true GB697559A (en) 1953-09-23

Family

ID=19808922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16332/51A Expired GB697559A (en) 1950-07-13 1951-07-10 Improvements in circuits comprising electric discharge tubes of the electron-beam type

Country Status (1)

Country Link
GB (1) GB697559A (en)

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