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 :
بازگشت