GB555601A - Improvements in high frequency amplifiers utilising electron discharge devices - Google Patents
Improvements in high frequency amplifiers utilising electron discharge devicesInfo
- Publication number
- GB555601A GB555601A GB1236542A GB1236542A GB555601A GB 555601 A GB555601 A GB 555601A GB 1236542 A GB1236542 A GB 1236542A GB 1236542 A GB1236542 A GB 1236542A GB 555601 A GB555601 A GB 555601A
- Authority
- GB
- United Kingdom
- Prior art keywords
- branch
- circuit
- impedance
- cathode lead
- circuits
- 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
- 230000001939 inductive effect Effects 0.000 abstract 3
- 238000013016 damping Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 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
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
- H03F1/12—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of attenuating means
- H03F1/13—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of attenuating means in discharge-tube amplifiers
-
- 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
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
- H03F1/14—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means
- H03F1/16—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means in discharge-tube amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
555,601. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Sept. 2, 1942, No. 12365. Addition to 534,531. [Class 40 (v)] In a high or intermediate frequency amplifier arranged to effect neutralization of the retroactive currents due to the anode-grid capacity, as described in the parent Specification, the resistance values of the circuits are taken into consideration. The arrangement consists of an inductive output circuit in series with a reactive circuit in the cathode lead and with the inductive branch of the input circuit connected to earth and the capacitive branch to the cathode or vice versa depending on the kind of reactance in the cathode lead. The impedance in the cathode lead X 2 , R, is so related to the load impedance X 1 , R, and the input circuit branch having the same sign as X 2 , impedance X 4 , R 4 and to the anode-grid reactance X, that R 2 = R 4 XŒR 1 X 4 /X 3 and X, = X 4 X 1 Œ R 1 R 4 /X 3 . The Figure shows an arrangement using a capacitive impedance 29 in the cathode lead and the capacitive branch of the input circuit constituted by the tuned circuit 18, 20 and the inductive branch by the choke 43 so that damping of the tuned circuit 18, 20 need not be made unnecessarily high to satisfy the conditions. The Specification gives vector diagrams and equivalent alternating current circuits with a mathematical analysis of the circuit shown and also similar data for the circuits described with reference to Figs. 1 and 2 of the parent Specification.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR52093D FR52093E (en) | 1942-09-02 | 1942-02-04 | Improvements to amplifiers |
| GB1236542A GB555601A (en) | 1942-09-02 | 1942-09-02 | Improvements in high frequency amplifiers utilising electron discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1236542A GB555601A (en) | 1942-09-02 | 1942-09-02 | Improvements in high frequency amplifiers utilising electron discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB555601A true GB555601A (en) | 1943-08-30 |
Family
ID=10003196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1236542A Expired GB555601A (en) | 1942-09-02 | 1942-09-02 | Improvements in high frequency amplifiers utilising electron discharge devices |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR52093E (en) |
| GB (1) | GB555601A (en) |
-
1942
- 1942-02-04 FR FR52093D patent/FR52093E/en not_active Expired
- 1942-09-02 GB GB1236542A patent/GB555601A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR52093E (en) | 1943-08-13 |
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