GB628601A - Improvements in thermionic valve amplifiers - Google Patents
Improvements in thermionic valve amplifiersInfo
- Publication number
- GB628601A GB628601A GB3236546A GB3236546A GB628601A GB 628601 A GB628601 A GB 628601A GB 3236546 A GB3236546 A GB 3236546A GB 3236546 A GB3236546 A GB 3236546A GB 628601 A GB628601 A GB 628601A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potential
- cathode
- terminal
- anode
- input
- 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
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/36—DC amplifiers in which all stages are DC-coupled with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
628,601. Valve amplifying circuits. YARBOROUGH, E. H. COOKE-. Oct. 31, 1946, No. 32365. [Class 40 (vi)] A thermionic valve amplifier for obtaining an output voltage across a load in the anode circuit which is in phase with the input voltage comprises a valve having two control grids biassed at or near earth potential; the cathode circuit contains a resistance having a value which is large compared with the reciprocal of the control grid mutual conductance, and is connected to a negative supply terminal, and the input is applied to that control grid which is nearer the cathode. In the Figure the input is applied between terminals 5, 6 and the output taken from terminal 4, terminal 9 is connected to a negative potential and terminal 8 to a positive potential with respect to earth. As the input voltage increases the cathode potential follows and the potential of the suppressor grid 3 is thus reduced with respect to cathode, there is thus a reduction of current flow to the anode and its potential rises. Additional negative feedback may be obtained by coupling the anode to suppressor grid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3236546A GB628601A (en) | 1946-10-31 | 1946-10-31 | Improvements in thermionic valve amplifiers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3236546A GB628601A (en) | 1946-10-31 | 1946-10-31 | Improvements in thermionic valve amplifiers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB628601A true GB628601A (en) | 1949-09-01 |
Family
ID=10337481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3236546A Expired GB628601A (en) | 1946-10-31 | 1946-10-31 | Improvements in thermionic valve amplifiers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB628601A (en) |
-
1946
- 1946-10-31 GB GB3236546A patent/GB628601A/en not_active Expired
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