GB765970A - Improvements in and relating to arrangements for the neutralisation of the inter-electrode capacities of thermionic valves - Google Patents
Improvements in and relating to arrangements for the neutralisation of the inter-electrode capacities of thermionic valvesInfo
- Publication number
- GB765970A GB765970A GB274154A GB274154A GB765970A GB 765970 A GB765970 A GB 765970A GB 274154 A GB274154 A GB 274154A GB 274154 A GB274154 A GB 274154A GB 765970 A GB765970 A GB 765970A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- ratio
- capacity
- cathode
- grid
- 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
- 238000006386 neutralization reaction Methods 0.000 title abstract 3
- 238000004804 winding Methods 0.000 abstract 2
- 239000003990 capacitor Substances 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
- H03F1/14—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)
- Particle Accelerators (AREA)
- Amplifiers (AREA)
Abstract
765,970. Valve amplifying circuits. ENGLISH ELECTRIC CO., Ltd. Jan. 28, 1955 [Jan. 29, 1954], No. 2741/54. Class 40(6) A neutralized amplifier comprises a valve which is driven between grid and ground in one phase, from a transformer winding L3, and between cathode and ground in opposite phase, from a further winding L2. The output is taken from a tuned anode circuit, the input transformer also being tuned. It is shown in the Specification that for neutralization the ratio of grid drive to cathode drive must equal the ratio of anode/cathode capacity to anode/ grid capacity. Balance may be adjusted by means of a variable capacitor in parallel with one or the other of the valve capacities referred to: by addition of such capacity exact neutralization may be obtained for a ratio of inputs which gives optimum matching between the valve and the input circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB274154A GB765970A (en) | 1954-01-29 | 1954-01-29 | Improvements in and relating to arrangements for the neutralisation of the inter-electrode capacities of thermionic valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB274154A GB765970A (en) | 1954-01-29 | 1954-01-29 | Improvements in and relating to arrangements for the neutralisation of the inter-electrode capacities of thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB765970A true GB765970A (en) | 1957-01-16 |
Family
ID=9745010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB274154A Expired GB765970A (en) | 1954-01-29 | 1954-01-29 | Improvements in and relating to arrangements for the neutralisation of the inter-electrode capacities of thermionic valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB765970A (en) |
-
1954
- 1954-01-29 GB GB274154A patent/GB765970A/en not_active Expired
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