GB777722A - Improvements in or relating to magnetic scanning circuits for cathode ray tubes and the like - Google Patents

Improvements in or relating to magnetic scanning circuits for cathode ray tubes and the like

Info

Publication number
GB777722A
GB777722A GB1770154A GB1770154A GB777722A GB 777722 A GB777722 A GB 777722A GB 1770154 A GB1770154 A GB 1770154A GB 1770154 A GB1770154 A GB 1770154A GB 777722 A GB777722 A GB 777722A
Authority
GB
United Kingdom
Prior art keywords
cathode ray
june
partly
aluminium foil
lined
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
GB1770154A
Inventor
Peter Kirkham
Raymond Gray Rippon Robinson
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.)
Pye Electronic Products Ltd
Original Assignee
Pye 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 Pye Ltd filed Critical Pye Ltd
Priority to GB1770154A priority Critical patent/GB777722A/en
Priority to FR1126145D priority patent/FR1126145A/en
Publication of GB777722A publication Critical patent/GB777722A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/90—Linearisation of ramp; Synchronisation of pulses

Landscapes

  • Details Of Television Scanning (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

777,722. Saw-tooth generating circuits. PYE, Ltd. June 1, 1955 [June 16, 1954], No. 17701/54. Class 40(6) The slope at the beginning of a saw tooth deflection wave form is linearized by providing a linearity control member made at least partly of conducting material and coupled electro-magnetically to the deflection coil, the member having such dimensions that it causes loss at the frequencies contained in the fly back pulse but not at the scan repetition frequency whereby the energy available for producing the first part of the scan, is reduced. The member may take the form 1, 1a, and may be made of metal or of insulating material lined with aluminium foil. In an alternative embodiment used in an efficiency diode type circuit the linearizing element consists of a synthetic resin impregnated paper tube lined or covered with aluminium foil and fitting over the neck of a cathode ray tube partly within the deflector coil assembly, the rear end of the tube being clamped in position by the iron trap magnet assembly (complete drawing, not shown).
GB1770154A 1954-06-16 1954-06-16 Improvements in or relating to magnetic scanning circuits for cathode ray tubes and the like Expired GB777722A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1770154A GB777722A (en) 1954-06-16 1954-06-16 Improvements in or relating to magnetic scanning circuits for cathode ray tubes and the like
FR1126145D FR1126145A (en) 1954-06-16 1955-06-14 Improvements to magnetic scanning circuits for cathode ray tubes and similar devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1770154A GB777722A (en) 1954-06-16 1954-06-16 Improvements in or relating to magnetic scanning circuits for cathode ray tubes and the like

Publications (1)

Publication Number Publication Date
GB777722A true GB777722A (en) 1957-06-26

Family

ID=10099695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1770154A Expired GB777722A (en) 1954-06-16 1954-06-16 Improvements in or relating to magnetic scanning circuits for cathode ray tubes and the like

Country Status (2)

Country Link
FR (1) FR1126145A (en)
GB (1) GB777722A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162791A (en) * 1963-02-05 1964-12-22 Gen Instrument Corp Width controlling means for cathode ray tube displays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162791A (en) * 1963-02-05 1964-12-22 Gen Instrument Corp Width controlling means for cathode ray tube displays

Also Published As

Publication number Publication date
FR1126145A (en) 1956-11-15

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