GB646512A - Improvements in or relating to electronic switching devices - Google Patents

Improvements in or relating to electronic switching devices

Info

Publication number
GB646512A
GB646512A GB5305/48A GB530548A GB646512A GB 646512 A GB646512 A GB 646512A GB 5305/48 A GB5305/48 A GB 5305/48A GB 530548 A GB530548 A GB 530548A GB 646512 A GB646512 A GB 646512A
Authority
GB
United Kingdom
Prior art keywords
targets
feb
electronic switching
multiplier
signal channels
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
GB5305/48A
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Publication of GB646512A publication Critical patent/GB646512A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • H01J31/06—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with more than two output electrodes, e.g. for multiple switching or counting

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • X-Ray Techniques (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

646,512. Thermionic distributers. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Feb. 23, 1948, No. 5305. Convention date, Feb. 27, 1947. [Class 40 (iii)] [Also in Groups XL (a) and XL (c)] In an electronic switching device an electrode f reduces the scanning beam to approximately zero velocity near the targets s1 ... s4 connected to individual signal channels so that it is repelled to a variable extent depending on the potential of each target. The returning electrons may be multiplied in a multiplier v surrounding the electron gun c, and focusing is aided by a coil m. The targets s1 ... s4 connected to the signal channels may be arranged in a straight line or in a circle. The temperature of the gun cathode is reduced to limit the velocity range of emission so that the required modulating voltages on s1 ... s4 are less than normal and also to produce a low intensity beam, a strong output signal nevertheless being obtained due to the electron multiplier v. Screens are inserted between the targets s1 ... s4 to reduce cross-talk to a minimum. A. known type of commutator operating by secondary emission is referred to (Fig. 1, not shown).
GB5305/48A 1947-02-27 1948-02-23 Improvements in or relating to electronic switching devices Expired GB646512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR836685X 1947-02-27

Publications (1)

Publication Number Publication Date
GB646512A true GB646512A (en) 1950-11-22

Family

ID=9298198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5305/48A Expired GB646512A (en) 1947-02-27 1948-02-23 Improvements in or relating to electronic switching devices

Country Status (3)

Country Link
DE (1) DE836685C (en)
FR (1) FR943159A (en)
GB (1) GB646512A (en)

Also Published As

Publication number Publication date
DE836685C (en) 1952-04-15
FR943159A (en) 1949-03-01

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