• DocumentCode
    1206096
  • Title

    A Coupled-Circuit Frequency Modulator

  • Author

    Brien, Elwin J.

  • Author_Institution
    Absent on leave from the University of North Dakota, Grand Forks, North Dakota; now, Voice Communication Laboratory, Waco Army Air Field, Waco, Texas
  • Volume
    32
  • Issue
    6
  • fYear
    1944
  • fDate
    6/1/1944 12:00:00 AM
  • Firstpage
    348
  • Lastpage
    350
  • Abstract
    The circuit developed in this paper uses a condenser microphone to vary the reactance of an oscillator tank circuit. Using a coupled circuit and a tuning inductance across the condenser microphone, a single-tube wide-band frequency modulator was constructed for use on 40 megacycles.
  • Keywords
    Capacitance; Circuit optimization; Coupling circuits; Frequency modulation; Inductance; Microphones; Oscillators; Transmitters; Tuning; Wideband;
  • fLanguage
    English
  • Journal_Title
    Proceedings of the IRE
  • Publisher
    ieee
  • ISSN
    0096-8390
  • Type

    jour

  • DOI
    10.1109/JRPROC.1944.231367
  • Filename
    1695003
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1206096