GB411628A - Improvements in or relating to automatic volume control in electrical signalling systems - Google Patents

Improvements in or relating to automatic volume control in electrical signalling systems

Info

Publication number
GB411628A
GB411628A GB850233A GB850233A GB411628A GB 411628 A GB411628 A GB 411628A GB 850233 A GB850233 A GB 850233A GB 850233 A GB850233 A GB 850233A GB 411628 A GB411628 A GB 411628A
Authority
GB
United Kingdom
Prior art keywords
volume control
automatic volume
relating
signalling systems
electrical signalling
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
GB850233A
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB850233A priority Critical patent/GB411628A/en
Publication of GB411628A publication Critical patent/GB411628A/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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

411,628. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and FAIRBAIRN, E. P., c /o General Electric Co., Stoke, Coventry. March 21, 1933, No. 8502. Drawings to Specification. [Class 40 (v).] The D.C. potential developed across a resistance in the common anode circuit of a pair of push-push connected valves is used for automatic volume control.
GB850233A 1933-03-21 1933-03-21 Improvements in or relating to automatic volume control in electrical signalling systems Expired GB411628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB850233A GB411628A (en) 1933-03-21 1933-03-21 Improvements in or relating to automatic volume control in electrical signalling systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB850233A GB411628A (en) 1933-03-21 1933-03-21 Improvements in or relating to automatic volume control in electrical signalling systems

Publications (1)

Publication Number Publication Date
GB411628A true GB411628A (en) 1934-06-14

Family

ID=9853689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB850233A Expired GB411628A (en) 1933-03-21 1933-03-21 Improvements in or relating to automatic volume control in electrical signalling systems

Country Status (1)

Country Link
GB (1) GB411628A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120901B (en) * 1958-12-06 1961-12-28 Maschf Augsburg Nuernberg Ag Suspension between an engine and the frame of road and rail vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120901B (en) * 1958-12-06 1961-12-28 Maschf Augsburg Nuernberg Ag Suspension between an engine and the frame of road and rail vehicles

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