GB563692A - Improvements in or relating to inductance coils for use in radio circuits - Google Patents

Improvements in or relating to inductance coils for use in radio circuits

Info

Publication number
GB563692A
GB563692A GB527643A GB527643A GB563692A GB 563692 A GB563692 A GB 563692A GB 527643 A GB527643 A GB 527643A GB 527643 A GB527643 A GB 527643A GB 563692 A GB563692 A GB 563692A
Authority
GB
United Kingdom
Prior art keywords
inductance coils
relating
less
radio circuits
flanges
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
GB527643A
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.)
CLAUDE ERNEST WHITE
EK Cole Ltd
Original Assignee
CLAUDE ERNEST WHITE
EK Cole 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 CLAUDE ERNEST WHITE, EK Cole Ltd filed Critical CLAUDE ERNEST WHITE
Priority to GB527643A priority Critical patent/GB563692A/en
Publication of GB563692A publication Critical patent/GB563692A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • 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
    • H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole

Landscapes

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

Abstract

563,692. Inductances. COLE, Ltd., E. K., and WHITE, C. E. April 2, 1943, No. 5276. [Class 38 (ii)] Radio frequency inductance coils e of less than “" diameter. less than ¢" length and of "Q" value at least 100 are provided with magnetic dust cores a having flanges b extending to the surface of the coil One or more intermediate flanges c may be provided and adjustment of the inductance value may be effected by movement of a threaded slug g of magnetic dust in an insulating sleeve f carrying a few auxiliary turns. Alternatively, two core parts h, k, Fig. 3, each carrying winding parts n, o may be mounted for relative movement in an internally screwed insulating casing p.
GB527643A 1943-04-02 1943-04-02 Improvements in or relating to inductance coils for use in radio circuits Expired GB563692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB527643A GB563692A (en) 1943-04-02 1943-04-02 Improvements in or relating to inductance coils for use in radio circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB527643A GB563692A (en) 1943-04-02 1943-04-02 Improvements in or relating to inductance coils for use in radio circuits

Publications (1)

Publication Number Publication Date
GB563692A true GB563692A (en) 1944-08-28

Family

ID=9793042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB527643A Expired GB563692A (en) 1943-04-02 1943-04-02 Improvements in or relating to inductance coils for use in radio circuits

Country Status (1)

Country Link
GB (1) GB563692A (en)

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