GB256649A - Improvements in or relating to thermionic valve circuits - Google Patents
Improvements in or relating to thermionic valve circuitsInfo
- Publication number
- GB256649A GB256649A GB19714/26A GB1971426A GB256649A GB 256649 A GB256649 A GB 256649A GB 19714/26 A GB19714/26 A GB 19714/26A GB 1971426 A GB1971426 A GB 1971426A GB 256649 A GB256649 A GB 256649A
- Authority
- GB
- United Kingdom
- Prior art keywords
- input
- capacity
- valve
- neutralize
- specifications
- 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 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 238000004804 winding 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
- H03F1/14—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)
- Coils Or Transformers For Communication (AREA)
- Amplifiers (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
256,649. Hazeltine Corporation, (Assignees of Hazeltine, L. A.). Feb. 27, 1925, [Convention date]. Thermionic amplifiers.-In a thermionic amplifier the components or wiring are so arranged as to introduce an inherent capacity adapted to neutralize at least part of the inherent undesirable coupling. The desired capacity may be provided by placing the tuning condensers adjacent to one another and the amount may be adjusted by movement of an electrostatic shield or screen. Alternatively the capacity existing between coils and transformers may be utilized. Fig. 1 shows an earth shield S arranged between the high potential terminal of coil LS1, and the apparatus connected to the grid of the value A1 to produce a natural capacity Cn to give neutralization as described in Specifications 222,895 and 223,181. In addition, to neutralize the coupling between the input of one value and the input of another a neutralizing winding may be coupled to the input inductance s and a wire therefrom arranged adjacent the input of the second valve. Alternatively a wire may be connected to the plate of the second valve and arranged adjacent the input of the first valve. Specifications 119,365, 231,820, 238,256, and 248,311 are also referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US256649XA | 1925-02-27 | 1925-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB256649A true GB256649A (en) | 1926-11-11 |
Family
ID=21827379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19714/26A Expired GB256649A (en) | 1925-02-27 | 1925-05-11 | Improvements in or relating to thermionic valve circuits |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE515620C (en) |
| GB (1) | GB256649A (en) |
| NL (1) | NL27079C (en) |
-
0
- NL NL27079D patent/NL27079C/xx active
-
1925
- 1925-05-11 GB GB19714/26A patent/GB256649A/en not_active Expired
- 1925-06-06 DE DEH111305D patent/DE515620C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE515620C (en) | 1931-01-09 |
| NL27079C (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB256649A (en) | Improvements in or relating to thermionic valve circuits | |
| US2229812A (en) | Radio receiver | |
| GB419914A (en) | Improvements relating to thermionic amplifiers | |
| GB262115A (en) | Improvements in thermionic valve generators and circuit arrangements therefor | |
| US1717455A (en) | Selector and receiver for radio frequency energy | |
| GB284698A (en) | Radio-frequency amplifying circuits | |
| US1584116A (en) | Radio receiving apparatus | |
| US2224115A (en) | Band-filter coupling circuit for television amplifiers | |
| GB388600A (en) | Back-coupling connection for thermionic valve amplifiers | |
| US1775213A (en) | Modulating system for high-frequency currents | |
| US2147138A (en) | Impedance unit | |
| US2075218A (en) | Device for removing undesirable frequencies from electric circuits | |
| GB261088A (en) | An improved method and means for effecting electrical amplification, more especiallyfor use in radio communication | |
| AT97852B (en) | Circuit arrangement for frequency-multiplication transformers, in particular for radio technology. | |
| GB307295A (en) | ||
| GB390926A (en) | Improvements in electrical coupling arrangements for thermionic valve amplifiers | |
| GB240953A (en) | Improvements in or relating to induction couplers or high frequency transformers | |
| GB317566A (en) | Improvements in or relating to wireless receiving systems | |
| GB305508A (en) | Improved means for the production of high-frequency currents | |
| GB257624A (en) | Means for protecting light current plant against the influence of heavy current wires | |
| GB306003A (en) | Improvements in or relating to electric circuit coupling devices suitable for use with thermionic valves and the like | |
| GB256627A (en) | Improvements in high frequency signalling systems | |
| GB645990A (en) | Improvements in or relating to receiving, amplifying and mixing circuits using valves with more than three electrodes | |
| GB374621A (en) | Improvements in or relating to radio receivers | |
| GB315399A (en) | Coupling systems for thermionic radio-frequency amplifiers |