GB608928A - Improvements in or relating to tuning devices - Google Patents

Improvements in or relating to tuning devices

Info

Publication number
GB608928A
GB608928A GB8424/46A GB842446A GB608928A GB 608928 A GB608928 A GB 608928A GB 8424/46 A GB8424/46 A GB 8424/46A GB 842446 A GB842446 A GB 842446A GB 608928 A GB608928 A GB 608928A
Authority
GB
United Kingdom
Prior art keywords
coil
capacitor
tracking
corrected
condensers
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
GB8424/46A
Other languages
English (en)
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
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 Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB608928A publication Critical patent/GB608928A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
GB8424/46A 1941-08-16 1946-03-19 Improvements in or relating to tuning devices Expired GB608928A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB608928A true GB608928A (en) 1948-09-22

Family

ID=19788041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8424/46A Expired GB608928A (en) 1941-08-16 1946-03-19 Improvements in or relating to tuning devices

Country Status (4)

Country Link
US (1) US2427331A (US20100012521A1-20100121-C00001.png)
BE (1) BE446844A (US20100012521A1-20100121-C00001.png)
FR (1) FR885192A (US20100012521A1-20100121-C00001.png)
GB (1) GB608928A (US20100012521A1-20100121-C00001.png)

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 (US20100012521A1-20100121-C00001.png) * 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 (US20100012521A1-20100121-C00001.png) * 1940-01-02
NL61935C (US20100012521A1-20100121-C00001.png) * 1940-05-17

Also Published As

Publication number Publication date
BE446844A (US20100012521A1-20100121-C00001.png)
FR885192A (fr) 1943-09-07
US2427331A (en) 1947-09-09

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