BE518135A - - Google Patents

Info

Publication number
BE518135A
BE518135A BE518135DA BE518135A BE 518135 A BE518135 A BE 518135A BE 518135D A BE518135D A BE 518135DA BE 518135 A BE518135 A BE 518135A
Authority
BE
Belgium
Application number
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.)
Publication of BE518135A publication Critical patent/BE518135A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes
    • H03G3/225—Automatic control in amplifiers having discharge tubes controlling or controlled by the (local) oscillators of a (super)heterodyne receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
    • H03D9/06—Transference of modulation using distributed inductance and capacitance
    • H03D9/065—Transference of modulation using distributed inductance and capacitance by means of discharge tubes having more than two electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
BE518135D 1952-03-03 BE518135A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL724951X 1952-03-03

Publications (1)

Publication Number Publication Date
BE518135A true BE518135A (zh)

Family

ID=19817769

Family Applications (1)

Application Number Title Priority Date Filing Date
BE518135D BE518135A (zh) 1952-03-03

Country Status (6)

Country Link
US (1) US2736798A (zh)
BE (1) BE518135A (zh)
DE (1) DE970703C (zh)
FR (1) FR1072114A (zh)
GB (2) GB193882A (zh)
NL (2) NL167858B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052828A (zh) * 1963-04-29

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1830242A (en) * 1929-03-22 1931-11-03 Rca Corp Wobbled frequency superheterodyne system
DE673313C (de) * 1931-08-01 1939-03-20 Walter Tausig Schaltung fuer UEberlagerungsempfang mit zwei oertlichen Schwingungserzeugern, derenFrequenzen sich um die gewuenschte UEberlagerungsfrequenz unterscheiden und beide oberhalb des Empfangsfrequenzbereiches liegen
DE645324C (de) * 1931-09-17 1937-05-26 Kolster Brandes Ltd Superheterodynempfaenger
US2000084A (en) * 1931-09-25 1935-05-07 Hazeltine Corp Short wave receiver arrangement
US2024807A (en) * 1932-11-30 1935-12-17 Rca Corp Radio apparatus
GB414769A (en) * 1933-02-13 1934-08-13 Emi Ltd Improvements in or relating to supersonic heterodyne receivers for wireless and like reception
US2026759A (en) * 1934-03-31 1936-01-07 Rca Corp Superheterodyne receiver
GB455649A (en) * 1935-04-26 1936-10-26 Marconi Wireless Telegraph Co Improvements in or relating to radio receivers
DE728755C (de) * 1937-03-07 1942-12-03 Georg V Schaub UEberlagerungsempfaenger mit zwei aufeinander folgenden Zwischenfrequenzen
US2606285A (en) * 1942-11-23 1952-08-05 Fr Des Telecomm Soc Double heterodyne radio receiver
US2509963A (en) * 1947-01-30 1950-05-30 Collins Radio Co Radio receiving and frequency conversion system
DE815497C (de) * 1948-12-21 1951-10-01 Telefunken Gmbh Skalenanordnung fuer einen UEberlagerungsempfaenger oder Sender

Also Published As

Publication number Publication date
DE970703C (de) 1958-10-16
US2736798A (en) 1956-02-28
GB193882A (en) 1923-02-28
FR1072114A (fr) 1954-09-08
NL89829C (zh)
GB724951A (en) 1955-02-23
NL167858B (nl)

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