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 systemsInfo
- 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
Links
- 230000011664 signaling Effects 0.000 title 1
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.
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)
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 |
-
1933
- 1933-03-21 GB GB850233A patent/GB411628A/en not_active Expired
Cited By (1)
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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