GB519448A - Push-pull amplifier circuit - Google Patents

Push-pull amplifier circuit

Info

Publication number
GB519448A
GB519448A GB27798/38A GB2779838A GB519448A GB 519448 A GB519448 A GB 519448A GB 27798/38 A GB27798/38 A GB 27798/38A GB 2779838 A GB2779838 A GB 2779838A GB 519448 A GB519448 A GB 519448A
Authority
GB
United Kingdom
Prior art keywords
valve
input
output
winding
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB27798/38A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philco Radio and Television Corp
Original Assignee
Philco Radio and Television Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philco Radio and Television Corp filed Critical Philco Radio and Television Corp
Publication of GB519448A publication Critical patent/GB519448A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

519,448. Valve amplifying circuits. PHILCO RADIO & TELEVISION CORPORATION. Sept. 23, 1938, No. 27798. Convention date, Oct. 16, 1937. [Class 40 (v)] In a push-pull amplifier part of the load circuit winding is included in the output circuit of one of the valves V2 and connections are taken from another part of the winding to feed the input with signal voltage of opposite phase to the output and, part of the load circuit winding is included in the output circuit of a second valve V1, the input and output of which are degeneratively coupled. The Figure shows an arrangement in which the signal voltage of opposite phase is fed to the input of V2 by a potentiometer R3, R4, a shunt condenser C3 being provided to compensate for the input capacity of the valve V2 to render the circuit independent of frequency. The valves V1, V2 preferably are provided with screen grids and the negative feedback is provided by resistance R5 and its amount is controlled by the magnitude of this resistance to the equivalent shunt impedance R1, R2 and the impedance of the valve V3. In a modification, Fig. 2 (not shown), the input of the valve V2 is taken from a tapping on the primary of the output transformer and the negative feedback is applied to the valve V1 from the secondary winding of the output transformer.
GB27798/38A 1937-10-16 1938-09-23 Push-pull amplifier circuit Expired GB519448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US169491A US2205335A (en) 1937-10-16 1937-10-16 Push-pull amplifier circuit

Publications (1)

Publication Number Publication Date
GB519448A true GB519448A (en) 1940-03-27

Family

ID=22615923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27798/38A Expired GB519448A (en) 1937-10-16 1938-09-23 Push-pull amplifier circuit

Country Status (2)

Country Link
US (1) US2205335A (en)
GB (1) GB519448A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293802A (en) * 1989-08-11 1994-03-15 Ryobi Limited Table saw

Also Published As

Publication number Publication date
US2205335A (en) 1940-06-18

Similar Documents

Publication Publication Date Title
GB677921A (en) Improvements in wide band amplifier coupling circuits
USRE24204E (en) Amplifier circuit having series-
GB460562A (en) Improvements in and relating to thermionic valve circuits
US2220770A (en) Apparatus for controlling the apparent resistance of an amplifier anode
US2763732A (en) High fidelity amplifier
GB519448A (en) Push-pull amplifier circuit
US2218902A (en) Thermionic valve amplifying circuits
US2273511A (en) Means to transform an alternating potential
US2179263A (en) Audio frequency amplifier
GB1073206A (en) Improvements in or relating to amplifier circuit arrangements
US2361282A (en) Push-pull electron tube system
US2239773A (en) Inverse feedback amplifier
US2595444A (en) Amplifier
US2920277A (en) Transistor amplifier
GB534988A (en) Stabilised tuned system for high-frequency oscillations
GB662677A (en) Phase inverter system
US2828369A (en) High fidelity audio amplifier
US2476174A (en) Amplifier power supply
GB489289A (en) Improvements in or relating to thermionic amplifiers
GB490347A (en) Improvements in or relating to amplifying systems
US2792458A (en) Hum reduction in feedback amplifiers
GB504960A (en) Improvements in or relating to audio frequency thermionic amplifiers
GB691909A (en) Improvements relating to negative feedback amplifiers
GB662096A (en) Improvements in or relating to amplifiers
US1978693A (en) Modulation