GB408269A - Improvements in and relating to thermionic amplifiers - Google Patents
Improvements in and relating to thermionic amplifiersInfo
- Publication number
- GB408269A GB408269A GB2759032A GB2759032A GB408269A GB 408269 A GB408269 A GB 408269A GB 2759032 A GB2759032 A GB 2759032A GB 2759032 A GB2759032 A GB 2759032A GB 408269 A GB408269 A GB 408269A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- class
- grid
- resistance
- diode
- 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
- H03F3/26—Push-pull amplifiers; Phase-splitters therefor
- H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
408,269. Valve amplifying circuits. ELECTRICAL & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex, and COOPER, A. H., Appledore, Syke Ings, Iver, Buckinghamshire. Oct. 4, 1932, No. 27590. [Class 40 (v).] A push-pull combination 1, 2 is combined with means such as a diode rectifier 10, so that as the input signal voltage increases the applied grid-bias is automatically brought nearer the lower bend of the characteristic curve, so that as the input rises the combination automatically changes from class A to class B amplification. The output voltage is applied through a condenser 8 and a resistance 17 to the diode 10, and the resulting voltage across a resistance 12 is applied to the grids of the two amplifiers. The derived voltage may be restricted to the desired value by means of a rectifier associated with a second resistance 13, the voltage across which is applied across the grid and cathode of both valves in such a sense that as the input energy rises the grid-bias is increased. In Fig. 2 a second diode 21 serves to limit the variation in the biassing potential applied to the push-pull valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2759032A GB408269A (en) | 1932-10-04 | 1932-10-04 | Improvements in and relating to thermionic amplifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2759032A GB408269A (en) | 1932-10-04 | 1932-10-04 | Improvements in and relating to thermionic amplifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB408269A true GB408269A (en) | 1934-04-04 |
Family
ID=10262111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2759032A Expired GB408269A (en) | 1932-10-04 | 1932-10-04 | Improvements in and relating to thermionic amplifiers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB408269A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2721907A (en) * | 1949-01-22 | 1955-10-25 | Charles T Jacobs | Electric-oscillation amplifiers |
-
1932
- 1932-10-04 GB GB2759032A patent/GB408269A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2721907A (en) * | 1949-01-22 | 1955-10-25 | Charles T Jacobs | Electric-oscillation amplifiers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB536089A (en) | Improvements in or relating to thermionic valve amplifiers | |
| GB518378A (en) | Improvements in or relating to thermionic valve circuits | |
| GB408269A (en) | Improvements in and relating to thermionic amplifiers | |
| GB515158A (en) | Improvements in and relating to thermionic valve amplifiers | |
| GB419914A (en) | Improvements relating to thermionic amplifiers | |
| GB499538A (en) | Amplifier arrangement for television purposes | |
| GB537558A (en) | Linear thermionic amplifying systems | |
| GB352357A (en) | Improvements in and relating to high frequency signalling systems | |
| GB480209A (en) | Automatic biassing circuit for thermionic amplifying tubes | |
| GB415155A (en) | Improvements in or relating to thermionic amplifiers and the like | |
| GB453400A (en) | Improvements in or relating to thermionic amplifiers | |
| GB456062A (en) | Improvements in and relating to circuits for use with thermionic valves | |
| GB646118A (en) | Improvements in or relating to circuit-arrangements having a constant or substantially constant amplification factor | |
| GB440612A (en) | Improvements in or relating to electron discharge device amplifiers | |
| GB389970A (en) | Improvements in electric signalling circuits with thermionic valves | |
| GB449349A (en) | Improvements in valve circuits | |
| GB414359A (en) | Improvements in or relating to means of correcting distortion of electric signals byamplifiers | |
| GB477815A (en) | Improvements in or relating to thermionic valve amplifiers | |
| GB474133A (en) | Improvements in thermionic amplifiers | |
| GB445893A (en) | Improvements in or relating to electron discharge device amplifiers | |
| GB435878A (en) | Improvements in and relating to thermionic amplifiers | |
| GB404981A (en) | Improvements in thermionic valve amplifiers | |
| GB369321A (en) | Improvements relating to thermionic valve amplifiers | |
| GB271222A (en) | Improvements in thermionic valve amplifying systems | |
| GB362504A (en) | Improvements in method and means for increasing the power output of a thermionic tube |