GB507603A - Improvements in or relating to amplifying systems - Google Patents

Improvements in or relating to amplifying systems

Info

Publication number
GB507603A
GB507603A GB35041/37A GB3504137A GB507603A GB 507603 A GB507603 A GB 507603A GB 35041/37 A GB35041/37 A GB 35041/37A GB 3504137 A GB3504137 A GB 3504137A GB 507603 A GB507603 A GB 507603A
Authority
GB
United Kingdom
Prior art keywords
push
feeding
pull
amplifier
ohms
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
GB35041/37A
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.)
RICHARD ADNEY MEERS
STC PLC
Original Assignee
RICHARD ADNEY MEERS
Standard Telephone and Cables PLC
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 RICHARD ADNEY MEERS, Standard Telephone and Cables PLC filed Critical RICHARD ADNEY MEERS
Publication of GB507603A publication Critical patent/GB507603A/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers

Landscapes

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

Abstract

507,603. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., MEERS, R. A., and ROSS, C. P. Dec. 17,1937, No. 35041. [Class 40 (v)] A push - pull amplifier is provided with a two-part secondary winding with the parts of the winding included in the cathode circuits to give negative feedback, an additional secondary winding may be provided for the outgoing circuit. The invention is applicable to broadcast repeating amplifiers comprising a main amplifier, as shown in the Figure, having an input attenuator and a two-stage amplifier feeding a push-pull pair feeding a load resistance R14 of 10,000 ohms. for feeding a number of auxiliary amplifiers. The auxiliary amplifiers are similar to the push-pull output stage, except that two secondary windings are provided and the feedback is arranged to reduce the output impedance to 30-40 ohms. Devices PV1-PV4 are provided for checking anode current comprising a resistance shunting a V-link socket arrangement. Filament jacks JI, J2 and alarm lamps L1, L2 may be provided and similar valves may be used throughout the repeater.
GB35041/37A 1937-12-17 1937-12-17 Improvements in or relating to amplifying systems Expired GB507603A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB216071X 1937-12-17

Publications (1)

Publication Number Publication Date
GB507603A true GB507603A (en) 1939-06-19

Family

ID=10165761

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35041/37A Expired GB507603A (en) 1937-12-17 1937-12-17 Improvements in or relating to amplifying systems

Country Status (3)

Country Link
CH (2) CH223659A (en)
FR (2) FR847652A (en)
GB (1) GB507603A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2595444A (en) * 1946-06-26 1952-05-06 Harry W Becker Amplifier
US2757244A (en) * 1950-10-11 1956-07-31 Electro Voice Broad band amplifier for television systems

Also Published As

Publication number Publication date
CH223659A (en) 1942-09-30
FR847653A (en) 1939-10-13
FR847652A (en) 1939-10-13
CH216071A (en) 1941-07-31

Similar Documents

Publication Publication Date Title
GB553847A (en) Electric wave amplification
GB507603A (en) Improvements in or relating to amplifying systems
GB562396A (en) Improvements in and relating to electron discharge amplifiers
GB958175A (en) Improvements in or relating to negative impedance circuits
GB700129A (en) Improvements in electric loudspeaker amplifying systems
GB566844A (en) Distortion reduction on modulated amplifiers
GB586138A (en) Improvements in or relating to electron discharge valve amplifiers
GB515158A (en) Improvements in and relating to thermionic valve amplifiers
GB727765A (en) Improvements in or relating to negative impedance devices
GB590443A (en) Thermionic amplifier for coupling to balanced output circuits
GB548424A (en) Improvements in or relating to thermionic valve amplifiers
GB989329A (en) Electrical amplifying circuits
GB489289A (en) Improvements in or relating to thermionic amplifiers
GB515271A (en) Circuit arrangements and thermionic valves for amplifying electrical oscillations
US1459419A (en) Multistage amplifier circuits
GB829307A (en) A negative impedance amplifier with separate input and output particularly for telephone systems
GB490347A (en) Improvements in or relating to amplifying systems
GB490656A (en) Improvements in broad band amplifiers
GB471549A (en) Improvements in or relating to thermionic valve amplifiers
GB425950A (en) Improvements in or relating to electron discharge device amplifiers
US3071735A (en) Phase-shift-reducing apparatus
GB564243A (en) High frequency electron discharge amplifiers
GB647488A (en) Improvements in or relating to means for preventing overload in electric amplifiers
GB506652A (en) Improvements in electron discharge tube amplifiers
GB412477A (en) Improvements in or relating to electron discharge device amplifiers