FR705523A - Improvements to vacuum tubes - Google Patents

Improvements to vacuum tubes

Info

Publication number
FR705523A
FR705523A FR705523DA FR705523A FR 705523 A FR705523 A FR 705523A FR 705523D A FR705523D A FR 705523DA FR 705523 A FR705523 A FR 705523A
Authority
FR
France
Prior art keywords
vacuum tubes
tubes
vacuum
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
Other languages
French (fr)
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.)
CBS Corp
Original Assignee
Westinghouse Electric and Manufacturing Co
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 Westinghouse Electric and Manufacturing Co filed Critical Westinghouse Electric and Manufacturing Co
Application granted granted Critical
Publication of FR705523A publication Critical patent/FR705523A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/488—Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation
FR705523D 1929-11-16 1930-11-10 Improvements to vacuum tubes Expired FR705523A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US407652A US2109245A (en) 1929-11-16 1929-11-16 Vacuum tube

Publications (1)

Publication Number Publication Date
FR705523A true FR705523A (en) 1931-06-09

Family

ID=23612963

Family Applications (1)

Application Number Title Priority Date Filing Date
FR705523D Expired FR705523A (en) 1929-11-16 1930-11-10 Improvements to vacuum tubes

Country Status (4)

Country Link
US (1) US2109245A (en)
BE (1) BE374539A (en)
DE (1) DE623082C (en)
FR (1) FR705523A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755195C (en) * 1932-07-04 1951-11-08 Marconi Wireless Telegraph Co Cathode ray amplifier tubes
DE878510C (en) * 1932-07-16 1953-06-05 Aeg Electron beam tubes for sound film and television purposes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540621A (en) * 1948-02-19 1951-02-06 Rca Corp Electron gun structure
US2712975A (en) * 1949-07-18 1955-07-12 Meditron Company Electronic diagnostic instruments
US3383536A (en) * 1964-09-22 1968-05-14 Westinghouse Electric Corp Cathode ray tube generating circular beam by lineal filament critically spaced from circular aperture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755195C (en) * 1932-07-04 1951-11-08 Marconi Wireless Telegraph Co Cathode ray amplifier tubes
DE878510C (en) * 1932-07-16 1953-06-05 Aeg Electron beam tubes for sound film and television purposes

Also Published As

Publication number Publication date
DE623082C (en) 1935-12-12
BE374539A (en)
US2109245A (en) 1938-02-22

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