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GB533626A - Electron discharge device amplifying circuits - Google Patents

Electron discharge device amplifying circuits

Info

Publication number
GB533626A
GB533626A GB29314/39A GB2931439A GB533626A GB 533626 A GB533626 A GB 533626A GB 29314/39 A GB29314/39 A GB 29314/39A GB 2931439 A GB2931439 A GB 2931439A GB 533626 A GB533626 A GB 533626A
Authority
GB
United Kingdom
Prior art keywords
valves
feed
impedances
amplifying circuits
push
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
GB29314/39A
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.)
STC PLC
Original Assignee
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB533626A publication Critical patent/GB533626A/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/06—Manually-operated control in untuned amplifiers having discharge tubes
    • H03G3/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/02—Volume compression or expansion in amplifiers having discharge tubes
    • H03G7/04—Volume compression or expansion in amplifiers having discharge tubes incorporating negative feedback

Landscapes

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

Abstract

533,626. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. Nov. 3, 1939, No. 29314. Convention date, Jan. 27. [Class 40 (v)] [Also in Group XXXIX] An amplifying circuit with valves 10, 101 each having individual negative feed-back impedances 18, 181 is controlled by a variable impedance 19 which adjusts the output of the valves simultaneously and is in shunt to the fixed impedances 18, 181. As shown in Fig. 1, the valves are arranged in push-pull but according to Fig. 3 (not shown), three valves are arranged in tandem, the first and third having negative feed-back, and the variable impedance 19 is connected between the cathode sides of the usual feed-back impedances. The impedance 19 may be a silver sulphide non-linear resistance so as to be selfvariable. The push-pull arrangement can be used in the control circuit of an amplifier of carrier signals, its output being used to heat a silver sulphide resistance in the feed-back path of the carrier amplifier.
GB29314/39A 1939-01-27 1939-11-03 Electron discharge device amplifying circuits Expired GB533626A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US253123A US2212337A (en) 1939-01-27 1939-01-27 Electron discharge device circuit

Publications (1)

Publication Number Publication Date
GB533626A true GB533626A (en) 1941-02-17

Family

ID=22958958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29314/39A Expired GB533626A (en) 1939-01-27 1939-11-03 Electron discharge device amplifying circuits

Country Status (3)

Country Link
US (1) US2212337A (en)
FR (1) FR862542A (en)
GB (1) GB533626A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1064112B (en) * 1956-01-28 1959-08-27 Telefonbau & Normalzeit Gmbh Push-pull B amplifier
DE1215769B (en) * 1959-03-06 1966-05-05 Telefunken Patent Counter-coupled transistor power amplifier

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968274A (en) * 1944-04-28 1961-01-17 Nelson N Estes Anti-torpedo system
US2468552A (en) * 1944-04-28 1949-04-26 Automatic Elect Lab Voice operated control circuit for two-way signal transmission systems
US2676300A (en) * 1951-12-06 1954-04-20 Gen Precision Lab Inc Vacuum tube voltmeter
US2892042A (en) * 1953-12-15 1959-06-23 Siemens Ag Amplification regulation in multistage amplifier apparatus
US2802069A (en) * 1954-09-07 1957-08-06 Bell Telephone Labor Inc Amplifier with high frequency compensation
US2903522A (en) * 1955-07-07 1959-09-08 Gen Precision Lab Inc Transistor amplifier
US2902548A (en) * 1955-09-09 1959-09-01 Motorola Inc Signal level control circuit
US3034068A (en) * 1956-11-30 1962-05-08 Hughes Aircraft Co Read amplifier
DE1058559B (en) * 1957-11-26 1959-06-04 Philips Nv Control circuit for electric amplifier
NL234889A (en) * 1958-02-19
US3032719A (en) * 1958-04-14 1962-05-01 Ibm Automatic gain control circuits
US3082381A (en) * 1959-05-27 1963-03-19 Goodyear Aircraft Corp Automatic gain control circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1064112B (en) * 1956-01-28 1959-08-27 Telefonbau & Normalzeit Gmbh Push-pull B amplifier
DE1215769B (en) * 1959-03-06 1966-05-05 Telefunken Patent Counter-coupled transistor power amplifier

Also Published As

Publication number Publication date
US2212337A (en) 1940-08-20
FR862542A (en) 1941-03-08

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