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
  • 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
• • 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

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Coils Or Transformers For Communication (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=21841396

Family Applications (2)

Family Applications Before (1)

Country Status (4)

• 0
  • NL NL79516D patent/NL79516C/xx active
  • NL NL63296214A patent/NL145076B/xx unknown
• 1949
  • 1949-01-28 FR FR979737D patent/FR979737A/fr not_active Expired
  • 1949-03-02 GB GB5736/49A patent/GB660689A/en not_active Expired
  • 1949-03-21 CH CH280690D patent/CH280690A/de unknown

Also Published As

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