GB740532A - Improvements in or relating to variable inductances for use in line time base circuits of television receivers - Google Patents

Improvements in or relating to variable inductances for use in line time base circuits of television receivers

Info

Publication number
GB740532A
GB740532A GB1200051A GB1200051A GB740532A GB 740532 A GB740532 A GB 740532A GB 1200051 A GB1200051 A GB 1200051A GB 1200051 A GB1200051 A GB 1200051A GB 740532 A GB740532 A GB 740532A
Authority
GB
United Kingdom
Prior art keywords
coil
core
relating
time base
television receivers
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
GB1200051A
Inventor
Kenneth Edward Martin
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.)
Mullard Radio Valve Co Ltd
Original Assignee
Mullard Radio Valve Co 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
Priority to BE511563D priority Critical patent/BE511563A/xx
Priority to NL89021D priority patent/NL89021C/xx
Application filed by Mullard Radio Valve Co Ltd filed Critical Mullard Radio Valve Co Ltd
Priority to GB1200051A priority patent/GB740532A/en
Publication of GB740532A publication Critical patent/GB740532A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/08—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by varying the permeability of the core, e.g. by varying magnetic bias
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Television Scanning (AREA)

Abstract

740,532. Inductances. MULLARD RADIO VALVE CO,., Ltd. May 6, 1952 [May 22, 1951J. No. 12000/51. Class 38 (2). [Also in Group XL (c)] A line scan linearity control for a television receiver comprises an inductance coil 1 through which is passed the line scan deflecting current, the coil having a core 9 of ferromagnetic cubic ferrite material, a permanent magnet 3 being non-adjustably arranged adjacent the coil in such a position that the required shape of voltage waveform across the coil can be obtained by moving the core 9 into or out of the coil I. The clips 4 and 5 are of magnetic material and form polepieces for the magnet 3 so that when the core 9 is in the coil it is saturated thereby, thus only one side of the B-H curve is used, the resulting voltage across the coil can be used to correct for the voltage drop across the effective circuit resistance.
GB1200051A 1951-05-22 1951-05-22 Improvements in or relating to variable inductances for use in line time base circuits of television receivers Expired GB740532A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE511563D BE511563A (en) 1951-05-22
NL89021D NL89021C (en) 1951-05-22
GB1200051A GB740532A (en) 1951-05-22 1951-05-22 Improvements in or relating to variable inductances for use in line time base circuits of television receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1200051A GB740532A (en) 1951-05-22 1951-05-22 Improvements in or relating to variable inductances for use in line time base circuits of television receivers

Publications (1)

Publication Number Publication Date
GB740532A true GB740532A (en) 1955-11-16

Family

ID=9996589

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1200051A Expired GB740532A (en) 1951-05-22 1951-05-22 Improvements in or relating to variable inductances for use in line time base circuits of television receivers

Country Status (3)

Country Link
BE (1) BE511563A (en)
GB (1) GB740532A (en)
NL (1) NL89021C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157848A (en) * 1958-10-28 1964-11-17 Tno Adjustable magnetic flux-source

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157848A (en) * 1958-10-28 1964-11-17 Tno Adjustable magnetic flux-source

Also Published As

Publication number Publication date
BE511563A (en)
NL89021C (en)

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