GB1015602A - Improvements in or relating to coil assemblies - Google Patents

Improvements in or relating to coil assemblies

Info

Publication number
GB1015602A
GB1015602A GB2896961A GB2896961A GB1015602A GB 1015602 A GB1015602 A GB 1015602A GB 2896961 A GB2896961 A GB 2896961A GB 2896961 A GB2896961 A GB 2896961A GB 1015602 A GB1015602 A GB 1015602A
Authority
GB
United Kingdom
Prior art keywords
coil
coils
core
former
square section
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
GB2896961A
Inventor
John Emyr Rhys-Jones
Roger Harvey Gardner
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.)
Plessey Co Ltd
Original Assignee
Plessey 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
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB2896961A priority Critical patent/GB1015602A/en
Publication of GB1015602A publication Critical patent/GB1015602A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/24—Continuous tuning of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

1,015,602. Inductors. PLESSEY CO. Ltd. Nov. 12, 1962 [Aug. 10, 1961], No. 28969/61. Heading H1T. [Also in Division H4] A coil assembly includes two coils having a common ferromagnetic core, relative movement between the core and the coils varying the inductances of the latter, at least one of the coils having two series or parallel windings 13a, 13b having the planes of their turns inclined to each other so as to produce a resultant magnetic field vector normal to that produced by the other coil 12. The assembly may form the aerial coil 12 and the local oscillator coil 13a, 13b of a superheterodyne radio receiver, the windings 13a, 13b having equal turns, being connected in series opposition and being wound over coil 12 on a square section former. Within the former is a square section ferrite rod core which acts as an aerial element of the flux concentrating type.
GB2896961A 1961-08-10 1961-08-10 Improvements in or relating to coil assemblies Expired GB1015602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2896961A GB1015602A (en) 1961-08-10 1961-08-10 Improvements in or relating to coil assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2896961A GB1015602A (en) 1961-08-10 1961-08-10 Improvements in or relating to coil assemblies

Publications (1)

Publication Number Publication Date
GB1015602A true GB1015602A (en) 1966-01-05

Family

ID=10284132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2896961A Expired GB1015602A (en) 1961-08-10 1961-08-10 Improvements in or relating to coil assemblies

Country Status (1)

Country Link
GB (1) GB1015602A (en)

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