FR885192A - Tuning device for radio receiver - Google Patents

Tuning device for radio receiver

Info

Publication number
FR885192A
FR885192A FR885192DA FR885192A FR 885192 A FR885192 A FR 885192A FR 885192D A FR885192D A FR 885192DA FR 885192 A FR885192 A FR 885192A
Authority
FR
France
Prior art keywords
radio receiver
tuning device
tuning
receiver
radio
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)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR885192A publication Critical patent/FR885192A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
FR885192D 1941-08-16 1942-08-14 Tuning device for radio receiver Expired FR885192A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL608928X 1941-08-16

Publications (1)

Publication Number Publication Date
FR885192A true FR885192A (en) 1943-09-07

Family

ID=19788041

Family Applications (1)

Application Number Title Priority Date Filing Date
FR885192D Expired FR885192A (en) 1941-08-16 1942-08-14 Tuning device for radio receiver

Country Status (4)

Country Link
US (1) US2427331A (en)
BE (1) BE446844A (en)
FR (1) FR885192A (en)
GB (1) GB608928A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687514A (en) * 1948-08-27 1954-08-24 Rca Corp Two-band tuning network

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE400555A (en) * 1933-01-02
GB447104A (en) * 1935-11-21 1936-05-12 Aladdin Radio Patents Ltd Improvements in or relating to tuning systems for wireless receivers of the supersonic-heterodyne type
US2145371A (en) * 1936-12-31 1939-01-31 Rca Corp Oscillator coil system for low frequency bands
NL58891C (en) * 1940-01-02
NL61935C (en) * 1940-05-17

Also Published As

Publication number Publication date
BE446844A (en)
US2427331A (en) 1947-09-09
GB608928A (en) 1948-09-22

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