GB498566A - Improvements in electron multipliers - Google Patents
Improvements in electron multipliersInfo
- Publication number
- GB498566A GB498566A GB6210/38A GB621038A GB498566A GB 498566 A GB498566 A GB 498566A GB 6210/38 A GB6210/38 A GB 6210/38A GB 621038 A GB621038 A GB 621038A GB 498566 A GB498566 A GB 498566A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- cloud
- electrons
- oscillated
- anodes
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/76—Dynamic electron-multiplier tubes, e.g. Farnsworth multiplier tube, multipactor
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
498,566. Electron multipliers. FARNSWORTH TELEVISION, Inc. Feb. 28, 1938, No. 6210. Convention date, March 22, 1937. [Class 39 (i)] In an electron multiplier a cloud of electrons is oscillated apart from the body which forms the cloud to be multiplied, the first part maintaining oscillating condition of the second. A common cathode 2, coated on its interior with silver on which is caesium, encloses two anodes 5, 6, one 5 connected to a potential source 7 through resonant circuit 9, the other 5 being connected over a H.T. choke 10 and load 11. A window 4 is formed in the anode opposite the cathode 5. Light falling through the window 4 on the cathode generates electrons which are oscillated about the anode 5, the potential of which is maintained by the oscillating system 2, 6, 9, 7 acting through the variable condenser 12 ; secondary emission occurs with the separate cloud as well as with that to be amplified. A thermionic cathode may supply the original electrons in place of photo emission from the cathode 2. In a modification, the cathode is divided and the two anodes are formed in one.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US132324A US2174487A (en) | 1937-03-22 | 1937-03-22 | Self-energized alternating current multiplier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB498566A true GB498566A (en) | 1939-01-10 |
Family
ID=22453493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6210/38A Expired GB498566A (en) | 1937-03-22 | 1938-02-28 | Improvements in electron multipliers |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2174487A (en) |
| FR (1) | FR835579A (en) |
| GB (1) | GB498566A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2518919A (en) * | 1949-01-06 | 1950-08-15 | Union Carbide & Carbon Corp | Electrical contact brush |
| US11588421B1 (en) | 2019-08-15 | 2023-02-21 | Robert M. Lyden | Receiver device of energy from the earth and its atmosphere |
-
1937
- 1937-03-22 US US132324A patent/US2174487A/en not_active Expired - Lifetime
-
1938
- 1938-02-28 GB GB6210/38A patent/GB498566A/en not_active Expired
- 1938-03-22 FR FR835579D patent/FR835579A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR835579A (en) | 1938-12-26 |
| US2174487A (en) | 1939-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB556046A (en) | Improvements relating to electron guns such as are used in cathode ray tubes | |
| GB498566A (en) | Improvements in electron multipliers | |
| GB496556A (en) | Improvements in electrodes for electron discharge devices | |
| GB471672A (en) | Improvements in or relating to electron discharge devices | |
| US1980702A (en) | Phototube | |
| GB470026A (en) | Improvements in or relating to electron discharge devices | |
| GB629881A (en) | Improvements in electric discharge tubes comprising secondary emission electrodes | |
| GB470102A (en) | Improvements in or relating to electron discharge devices | |
| US2063195A (en) | Photoamplifier arrangement | |
| GB488661A (en) | Improvements in electron multipliers working as oscillators or amplifiers | |
| GB499649A (en) | Improvements in or relating to electron multipliers | |
| GB484598A (en) | Improvements in or relating to electron discharge devices for use in television and like systems | |
| GB525243A (en) | Radio frequency multipactor amplifier | |
| GB475807A (en) | Improvements in or relating to light sensitive electron discharge devices | |
| GB485672A (en) | Improvements in or relating to electron multiplier discharge devices and arrangements incorporating the same | |
| GB490265A (en) | Improvements in valve amplifiers comprising a secondary emission electron multiplier | |
| GB480275A (en) | Improvements in or relating to cathode ray tubes | |
| GB463514A (en) | Improvements in electron multipliers | |
| GB537900A (en) | Improvements in or relating to amplifying circuits comprising a secondary-emission discharge tube | |
| GB466929A (en) | Improvements in or relating to electric discharge tube circuit arrangements and electric discharge tubes for use therein | |
| GB610120A (en) | Improvements in circuit arrangements for amplifying or generating ultra high-frequency oscillations | |
| GB482026A (en) | Electron multiplier | |
| GB478001A (en) | Improvements in or relating to electron discharge devices | |
| GB410606A (en) | Improvements in or relating to electric discharge devices | |
| GB606489A (en) | Improvements in or relating to cathode-ray tubes, more particularly iconoscopes and circuit arrangements therefor |