ES178576A1 - Mejoras en circuitos selectivos de frecuencia variable - Google Patents

Mejoras en circuitos selectivos de frecuencia variable

Info

Publication number
ES178576A1
ES178576A1 ES0178576A ES178576A ES178576A1 ES 178576 A1 ES178576 A1 ES 178576A1 ES 0178576 A ES0178576 A ES 0178576A ES 178576 A ES178576 A ES 178576A ES 178576 A1 ES178576 A1 ES 178576A1
Authority
ES
Spain
Prior art keywords
variable frequency
frequency circuits
selective variable
coefficients
variation
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
ES0178576A
Other languages
English (en)
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES178576A1 publication Critical patent/ES178576A1/es
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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H5/00—One-port networks comprising only passive electrical elements as network components
    • H03H5/02—One-port networks comprising only passive electrical elements as network components without voltage- or current-dependent elements

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
ES0178576A 1946-07-13 1947-06-20 Mejoras en circuitos selectivos de frecuencia variable Expired ES178576A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21011/46A GB621145A (en) 1946-07-13 1946-07-13 Improvements in or relating to tuning arrangements for radio receivers and the like

Publications (1)

Publication Number Publication Date
ES178576A1 true ES178576A1 (es) 1947-08-16

Family

ID=10155674

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0178576A Expired ES178576A1 (es) 1946-07-13 1947-06-20 Mejoras en circuitos selectivos de frecuencia variable

Country Status (4)

Country Link
US (1) US2531434A (en, 2012)
ES (1) ES178576A1 (en, 2012)
FR (1) FR957155A (en, 2012)
GB (1) GB621145A (en, 2012)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959743A (en) * 1956-07-27 1960-11-08 Rca Corp High frequency tuner having temperature compensating means
GB898508A (en) * 1958-11-03 1962-06-14 Philips Electrical Ind Ltd Improvements in tuned circuits suitable for use in superheterodyne receivers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005772A (en) * 1931-01-24 1935-06-25 Csf Heterodyne receiver
US2250090A (en) * 1938-09-28 1941-07-22 Telefunken Gmbh Arrangement for tuning high frequency oscillation circuits
US2231389A (en) * 1939-05-08 1941-02-11 Philips Nv Tunable oscillatory circuits
US2310797A (en) * 1940-08-08 1943-02-09 Rca Corp Frequency variation compensation circuit

Also Published As

Publication number Publication date
US2531434A (en) 1950-11-28
GB621145A (en) 1949-04-05
FR957155A (en, 2012) 1950-02-16

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