GB391392A - Improvements in and relating to valve circuits for radio transmission - Google Patents
Improvements in and relating to valve circuits for radio transmissionInfo
- Publication number
- GB391392A GB391392A GB33642/32A GB3364232A GB391392A GB 391392 A GB391392 A GB 391392A GB 33642/32 A GB33642/32 A GB 33642/32A GB 3364232 A GB3364232 A GB 3364232A GB 391392 A GB391392 A GB 391392A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- screen
- plate
- valve
- grid voltage
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
391,392. Valve amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Nov. 28, 1932, No. 33642. Convention date, Dec. 10, 1931. [Class 40 (v).] The energy amplification of a screen-grid stage of a radio transmitter is increased by raising the screen-grid voltage so that the plate current reaches a saturation value with a control grid voltage that does not produce substantial grid current. The raising of the screen-grid voltage shifts the plate current-control grid voltage curve from the position 1 to the position 2, in which all the rising part of the curve lies on the negative side of the zero grid volts ordinate 0 B. The valve employed should be such that its amplification factor, measured with plate and screen-grid joined, is small. Secondary emission from the plate is reduced by using a third grid between it and the screengrid, or the plate may be formed of, or coated with, a material that is a poor emitter of electrons. The external screening of the valve stage should be adjacent to the internal screen formed by the screen-grid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL391392X | 1931-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB391392A true GB391392A (en) | 1933-04-27 |
Family
ID=19785793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33642/32A Expired GB391392A (en) | 1931-12-10 | 1932-11-28 | Improvements in and relating to valve circuits for radio transmission |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE392776A (en) |
| GB (1) | GB391392A (en) |
-
0
- BE BE392776D patent/BE392776A/xx unknown
-
1932
- 1932-11-28 GB GB33642/32A patent/GB391392A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE392776A (en) |
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