GB738266A - Improvements in or relating to electromagnetic deflection arrangements for cathode ray tubes - Google Patents

Improvements in or relating to electromagnetic deflection arrangements for cathode ray tubes

Info

Publication number
GB738266A
GB738266A GB22186/51A GB2218651A GB738266A GB 738266 A GB738266 A GB 738266A GB 22186/51 A GB22186/51 A GB 22186/51A GB 2218651 A GB2218651 A GB 2218651A GB 738266 A GB738266 A GB 738266A
Authority
GB
United Kingdom
Prior art keywords
coils
frame
line
relating
sept
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
GB22186/51A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB738266A publication Critical patent/GB738266A/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
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H01J29/764—Deflecting by magnetic fields only using toroidal windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/42—Flyback transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

738,266. Rectifying. STANDARD TELEPHONES & CABLES, Ltd. Sept. 21, 1951 [Sept. 23, 1950; Feb. 2, 1951], No. 22186/51. Class 38 (2). [Also in Groups XL (a) and XL (c)] Cathode-ray tube line-scanning coils L1 ... L4 and frame-scanning coils L6 ... L8 are mounted toroidally on a yoke 1, and are arranged so that the line coils are capable of feeding directly a voltage-doubling E.H.T. circuit without the intervention of a transformer. Pairs of coils such as L3, L4 are spaced 60 degrees apart and produce aiding fields, and opposite pairs such as L3, L4 and L1, L2 produce opposing fields. The frame.coils are connected in series, while the line coils are connected in series-parallel as shown ; condenser C1 is for tuning the coils while condenser C2 is for removing unbalance, and undesirable coup. ling with the frame coils. The voltage doubling circuit comprises diodes D1, D2, reservoir condensers C3, C4 and limiting resistance R, the diode cathodes being heated by windings L9, L10 energized by the flux in yoke 1.
GB22186/51A 1950-09-23 1951-09-21 Improvements in or relating to electromagnetic deflection arrangements for cathode ray tubes Expired GB738266A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE738266X 1950-09-23

Publications (1)

Publication Number Publication Date
GB738266A true GB738266A (en) 1955-10-12

Family

ID=6642766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22186/51A Expired GB738266A (en) 1950-09-23 1951-09-21 Improvements in or relating to electromagnetic deflection arrangements for cathode ray tubes

Country Status (1)

Country Link
GB (1) GB738266A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005015598A1 (en) * 2003-08-08 2005-02-17 Koninklijke Philips Electronics N.V. A display device comprising a cathode ray tube having a deflection unit and a deflection unit for a cathode ray tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005015598A1 (en) * 2003-08-08 2005-02-17 Koninklijke Philips Electronics N.V. A display device comprising a cathode ray tube having a deflection unit and a deflection unit for a cathode ray tube

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