GB770054A - Improvements in or relating to electron discharge tube arrangements - Google Patents

Improvements in or relating to electron discharge tube arrangements

Info

Publication number
GB770054A
GB770054A GB692254A GB692254A GB770054A GB 770054 A GB770054 A GB 770054A GB 692254 A GB692254 A GB 692254A GB 692254 A GB692254 A GB 692254A GB 770054 A GB770054 A GB 770054A
Authority
GB
United Kingdom
Prior art keywords
coils
relating
discharge tube
electron discharge
tube arrangements
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
GB692254A
Inventor
Denis Gordon Perkins
Eric William Bull
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB692254A priority Critical patent/GB770054A/en
Publication of GB770054A publication Critical patent/GB770054A/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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/96—Circuit elements other than coils, reactors or the like, associated with the tube
    • H01J2229/964—Circuit elements other than coils, reactors or the like, associated with the tube associated with the deflection system

Landscapes

  • Details Of Television Scanning (AREA)

Abstract

770,054. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 10, 1955 [March 10, 1954], No. 6922/54. Class 39(1). A pair of coils 2, 21, 3, 31, 4, 4<1>, 5, 5<1> is provided at each corner of the scanned area 1 to adjust the geometry. Further coils may be provided for other parts of the scanned area. The coils may be wound on a magnetic yoke, or flat coils may be carried by a channelled support 12, Fig. 6. In a receiver tube, Fig. 6, the coils are positioned at the screen. In a C.P.S. camera tube, they are positioned immediately following the deflecting coils.
GB692254A 1954-03-10 1954-03-10 Improvements in or relating to electron discharge tube arrangements Expired GB770054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB692254A GB770054A (en) 1954-03-10 1954-03-10 Improvements in or relating to electron discharge tube arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB692254A GB770054A (en) 1954-03-10 1954-03-10 Improvements in or relating to electron discharge tube arrangements

Publications (1)

Publication Number Publication Date
GB770054A true GB770054A (en) 1957-03-13

Family

ID=9823304

Family Applications (1)

Application Number Title Priority Date Filing Date
GB692254A Expired GB770054A (en) 1954-03-10 1954-03-10 Improvements in or relating to electron discharge tube arrangements

Country Status (1)

Country Link
GB (1) GB770054A (en)

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