DocumentCode
1380831
Title
A transistor automatic gain control system for audio frequencies
Author
Shirman, J.
Author_Institution
Stromberg-Carlson Company, Rochester, N. Y.
Volume
79
Issue
6
fYear
1961
Firstpage
664
Lastpage
669
Abstract
Automatic gain control (AGC) circuits are useful in obtaining relatively constant output levels where the input signal may vary over a wide range. Several articles have been written covering methods of controlling transistor gain in intermediate radio-frequency circuits.1,2 The usual method employed is to change one of the transistor parameters by the application of an external signal. The two basic methods of gain control indicated are: 1. Emitter current (Ie) control. 2. Collector voltage (Vc) control.
Keywords
Attenuation; Batteries; Equations; Gain; Gain control; Impedance; Transistors;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
Publisher
ieee
ISSN
0097-2452
Type
jour
DOI
10.1109/TCE.1961.6373027
Filename
6373027
Link To Document