Title :
Cathode Neutralization of Video Amplifiers
Author :
Miller, John M., Jr.
Author_Institution :
Formerly, Ripley Co., Inc., Middletown, Conn., now, Bendix Radio, Baltimore, Md.
Abstract :
The usual cathode bypass capacitors are eliminated, and replaced by a resistor connected from cathode to cathode of succeeding stages. It is shown that no gain need be sacrificed, and a great reduction in low-frequency phase shift is obtained. The addition of a small capacitance across a portion of the intercathode resistance gives an improvement in high frequency response and phase shift. Gain and stability equations are derived, and a circuit diagram of a practical amplifier is given.
Keywords :
Capacitance; Capacitors; Cathodes; Circuit stability; Electrodes; Equations; Frequency response; Performance gain; Resistors; Transconductance;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1949.230949
