FR972647A - Improvements to adjustable magnetic cores used in oscillating circuit devices - Google Patents

Improvements to adjustable magnetic cores used in oscillating circuit devices

Info

Publication number
FR972647A
FR972647A FR972647DA FR972647A FR 972647 A FR972647 A FR 972647A FR 972647D A FR972647D A FR 972647DA FR 972647 A FR972647 A FR 972647A
Authority
FR
France
Prior art keywords
oscillating circuit
circuit devices
magnetic cores
adjustable magnetic
cores used
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
Other languages
French (fr)
Inventor
Marie-Victor-Ghislai De Maro
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 filed Critical
Application granted granted Critical
Publication of FR972647A publication Critical patent/FR972647A/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
    • 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
    • H01F17/041—Means for preventing rotation or displacement of the core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
FR972647D 1948-08-27 1948-08-27 Improvements to adjustable magnetic cores used in oscillating circuit devices Expired FR972647A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR972647T 1948-08-27

Publications (1)

Publication Number Publication Date
FR972647A true FR972647A (en) 1951-02-01

Family

ID=9516129

Family Applications (1)

Application Number Title Priority Date Filing Date
FR972647D Expired FR972647A (en) 1948-08-27 1948-08-27 Improvements to adjustable magnetic cores used in oscillating circuit devices

Country Status (1)

Country Link
FR (1) FR972647A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018486B (en) * 1952-08-12 1957-10-31 Siemens Ag High frequency coil with a movable core
US3129397A (en) * 1960-10-27 1964-04-14 Grayhill Moldtronics Inc Internally threaded coil form for securing threaded core therein
DE1241545B (en) * 1962-02-15 1967-06-01 Kaschke K G Adjustment core for coils in communications engineering
DE1276833B (en) * 1962-04-07 1968-09-05 Vogt & Co K G Coil core for high frequency technology and process for its production
FR2315753A1 (en) * 1975-06-27 1977-01-21 Cit Alcatel Tunable inductor with core sleeve - may be screwed into ceramic tube and pressed radially to take up play

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018486B (en) * 1952-08-12 1957-10-31 Siemens Ag High frequency coil with a movable core
US3129397A (en) * 1960-10-27 1964-04-14 Grayhill Moldtronics Inc Internally threaded coil form for securing threaded core therein
DE1241545B (en) * 1962-02-15 1967-06-01 Kaschke K G Adjustment core for coils in communications engineering
DE1276833B (en) * 1962-04-07 1968-09-05 Vogt & Co K G Coil core for high frequency technology and process for its production
FR2315753A1 (en) * 1975-06-27 1977-01-21 Cit Alcatel Tunable inductor with core sleeve - may be screwed into ceramic tube and pressed radially to take up play

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