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Title: STABILIZED FEEDBACK AMPLIFIER

Negative feedback amplifiers, and particularly a negative feedback circuit which is economical on amode power consumption, are described. Basically, the disclosed circuit comprises two tetrode tubes where the output of the first tube is capacitamce coupled to the grid of the second tube, which in turn has its plate coupled to the cathode of the first tube to form a degenerative feedback circuit. Operating potential for screen of the second tube is supplied by connecting the cathode resistor of the first tube to the screen, while the screen is by-passed to the cathode of its tube for the amplified frequencies. Also, the amplifier incorporates a circuit to stabilize the transconductance of the tubes by making the grid potential of each tube interdependent on anode currents of both lubes by voltage divider circuitry.
Authors:
;
Publication Date:
OSTI Identifier:
4312389
Report Number(s):
US 2802070
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Research Org:
Originating Research Org. not identified
Country of Publication:
United States
Language:
English
Subject:
PATENTS; AMPLIFIERS; CAPACITORS; CATHODES; CURRENTS; ECONOMICS; ELECTRIC POTENTIAL; ELECTRON TUBES; PATENT; POWER; RESISTORS; STABILITY