NL64971C - - Google Patents

Info

Publication number
NL64971C
NL64971C NL64971DA NL64971C NL 64971 C NL64971 C NL 64971C NL 64971D A NL64971D A NL 64971DA NL 64971 C NL64971 C NL 64971C
Authority
NL
Netherlands
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 NL64971C publication Critical patent/NL64971C/xx

Links

Classifications

    • 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
    • H01F21/065—Measures for obtaining a desired relation between the position of the core and the inductance
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
NL64971D 1938-10-13 NL64971C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE536412X 1938-10-13
DE2285029X 1939-06-22
DE2252100X 1939-06-28

Publications (1)

Publication Number Publication Date
NL64971C true NL64971C (zh)

Family

ID=32096473

Family Applications (1)

Application Number Title Priority Date Filing Date
NL64971D NL64971C (zh) 1938-10-13

Country Status (6)

Country Link
US (2) US2252100A (zh)
BE (1) BE440362A (zh)
DE (1) DE1081072B (zh)
FR (3) FR860823A (zh)
GB (1) GB536412A (zh)
NL (1) NL64971C (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE551064A (zh) * 1940-08-28
DE761144C (de) * 1941-01-27 1952-11-10 Telefunken Gmbh Empfaenger mit Bandspreizung im Kurzwellenbereich
DE976578C (de) * 1941-04-11 1963-12-05 Siemens Ag Variometeranordnung mit verschiedenen Variationsbereichen
BE446251A (zh) * 1941-07-01
DE952184C (de) * 1942-03-14 1956-11-15 Lorenz C Ag Empfaenger mit Permeabilitaetsabstimmung durch Verschieben von Eisenkernen fuer Bandspreizung
US2424506A (en) * 1942-10-24 1947-07-22 Rca Corp Permeability-tuned short-wave spread-band receiver
DE963884C (de) * 1949-03-04 1957-05-16 Siemens Ag Schaltung zur Frequenznachstellung
DE933346C (de) * 1950-10-21 1955-09-22 Siemens Ag Variometer mit beweglichem Eisenkern, insbesondere zur Kurzwellenbandspreizung in Rundfunkgeraeten
DE864894C (de) * 1951-03-15 1953-01-29 Saba Gmbh Vorrichtung zum Feinabstimmen hochfrequenter Schwingungskreise, vorzugsweise fuer Rundfunkgeraete
DE902265C (de) * 1951-11-20 1954-01-21 Oskar Vierling Dr Abstimmanordnung und Aufbau von Kleinempfaengern
DE4012265A1 (de) * 1990-04-17 1991-10-24 Toepholm & Westermann Schaltungsanordnung fuer einen ausgangstankkreis einer mit frequenzumtastung betriebenen sender-endstufe
US5302415A (en) * 1992-12-08 1994-04-12 E. I. Du Pont De Nemours And Company Electroless plated aramid surfaces and a process for making such surfaces

Also Published As

Publication number Publication date
DE1081072B (de) 1960-05-05
FR51420E (fr) 1942-06-24
FR51427E (fr) 1942-06-24
GB536412A (en) 1941-05-14
US2285029A (en) 1942-06-02
BE440362A (zh)
US2252100A (en) 1941-08-12
FR860823A (fr) 1941-01-24

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