GB475400A - Thermionic amplifiers - Google Patents

Thermionic amplifiers

Info

Publication number
GB475400A
GB475400A GB14850/37A GB1485037A GB475400A GB 475400 A GB475400 A GB 475400A GB 14850/37 A GB14850/37 A GB 14850/37A GB 1485037 A GB1485037 A GB 1485037A GB 475400 A GB475400 A GB 475400A
Authority
GB
United Kingdom
Prior art keywords
variable
feed
grids
control grid
valve
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
GB14850/37A
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.)
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 GB475400A publication Critical patent/GB475400A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

475,400. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. May 28, 1937, No. 14850. Convention date, June 20, 1936. [Class 40 (v)] In a negative feed-back amplifier the feedback is taken to a control grid electrically separate from the input control grid. The Figure shows the feed-back 25 applied to one of the co-planar grids of a valve also having screen and suppresser grids, the co-planar grids are negatively biassed. An output bridge may be used to supply the feed-back and one or more of the bridge arms may be variable and frequency dependant to equalize variable line transmission or variable load, alternatively the variable impedance may be across a diagonal of the output bridge.
GB14850/37A 1936-06-20 1937-05-28 Thermionic amplifiers Expired GB475400A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US475400XA 1936-06-20 1936-06-20

Publications (1)

Publication Number Publication Date
GB475400A true GB475400A (en) 1937-11-18

Family

ID=21949558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14850/37A Expired GB475400A (en) 1936-06-20 1937-05-28 Thermionic amplifiers

Country Status (2)

Country Link
FR (1) FR824727A (en)
GB (1) GB475400A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE874606C (en) * 1943-05-03 1953-04-23 Aeg Broadband amplifier with negative feedback via several stages

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE874606C (en) * 1943-05-03 1953-04-23 Aeg Broadband amplifier with negative feedback via several stages

Also Published As

Publication number Publication date
FR824727A (en) 1938-02-15

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