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GB613152A - Improvements in or relating to bandspread tuning devices for radio apparatus - Google Patents

Improvements in or relating to bandspread tuning devices for radio apparatus

Info

Publication number
GB613152A
GB613152A GB11782/46A GB1178246A GB613152A GB 613152 A GB613152 A GB 613152A GB 11782/46 A GB11782/46 A GB 11782/46A GB 1178246 A GB1178246 A GB 1178246A GB 613152 A GB613152 A GB 613152A
Authority
GB
United Kingdom
Prior art keywords
band
inductors
condenser
condensers
relating
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
GB11782/46A
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 GB613152A publication Critical patent/GB613152A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/10—Circuit arrangements for fine tuning, e.g. bandspreading

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
GB11782/46A 1941-07-01 1946-04-17 Improvements in or relating to bandspread tuning devices for radio apparatus Expired GB613152A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL228559X 1941-07-01

Publications (1)

Publication Number Publication Date
GB613152A true GB613152A (en) 1948-11-23

Family

ID=19779790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11782/46A Expired GB613152A (en) 1941-07-01 1946-04-17 Improvements in or relating to bandspread tuning devices for radio apparatus

Country Status (6)

Country Link
US (1) US2486692A (es)
BE (1) BE446251A (es)
CH (1) CH228559A (es)
FR (1) FR883669A (es)
GB (1) GB613152A (es)
NL (1) NL57804C (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835813A (en) * 1954-04-26 1958-05-20 Philips Corp Device for fine tuning of a resonant circuit
US3400345A (en) * 1963-11-27 1968-09-03 Imp Rundfunk Und Fernseewerk G Tuning selection system for uhf and vhf television bands

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2207254A (en) * 1938-09-08 1940-07-09 Rca Corp Band spread tuning system
BE440362A (es) * 1938-10-13
US2252919A (en) * 1939-01-10 1941-08-19 Lewis D Eckard Multiwave variable resonator
US2402261A (en) * 1942-11-21 1946-06-18 Rca Corp Permeability tuned band-spread circuit

Also Published As

Publication number Publication date
NL57804C (es)
US2486692A (en) 1949-11-01
BE446251A (es)
FR883669A (fr) 1943-07-12
CH228559A (de) 1943-08-31

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