GB516080A - Improvements in or relating to high frequency coils of variable inductance - Google Patents

Improvements in or relating to high frequency coils of variable inductance

Info

Publication number
GB516080A
GB516080A GB18311/38A GB1831138A GB516080A GB 516080 A GB516080 A GB 516080A GB 18311/38 A GB18311/38 A GB 18311/38A GB 1831138 A GB1831138 A GB 1831138A GB 516080 A GB516080 A GB 516080A
Authority
GB
United Kingdom
Prior art keywords
variable inductance
relating
high frequency
frequency coils
june
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
GB18311/38A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB516080A publication Critical patent/GB516080A/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
    • 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)
  • Soft Magnetic Materials (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

516,080. Inductances. SIEMENS & HALSKE AKT.-GES. June 20, 1938, No. 18311. Convention date, June 18, 1937. [Class 38 (ii)] A variable inductance comprises a winding on an arcuate former 2 within which moves an arcuate core 1, preferably of powdered magnetic material, to which is secured a part 3 of non-magnetic material, preferably of the same specific weight as the core material, the parts 1 and 3 forming a complete annulus. The part 3 together with its supporting element 6 may be of ceramic material. The former 2 also may be of ceramic material having the winding in the form of a metal spiral burnt on.
GB18311/38A 1937-06-18 1938-06-20 Improvements in or relating to high frequency coils of variable inductance Expired GB516080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE516080X 1937-06-18

Publications (1)

Publication Number Publication Date
GB516080A true GB516080A (en) 1939-12-21

Family

ID=6549149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18311/38A Expired GB516080A (en) 1937-06-18 1938-06-20 Improvements in or relating to high frequency coils of variable inductance

Country Status (1)

Country Link
GB (1) GB516080A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975384A (en) * 1954-09-24 1961-03-14 Sprague Electric Co Toroidal inductor combinations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975384A (en) * 1954-09-24 1961-03-14 Sprague Electric Co Toroidal inductor combinations

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