GB488661A - Improvements in electron multipliers working as oscillators or amplifiers - Google Patents
Improvements in electron multipliers working as oscillators or amplifiersInfo
- Publication number
- GB488661A GB488661A GB1071/37A GB107137A GB488661A GB 488661 A GB488661 A GB 488661A GB 1071/37 A GB1071/37 A GB 1071/37A GB 107137 A GB107137 A GB 107137A GB 488661 A GB488661 A GB 488661A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cup
- septum
- electrodes
- cloud
- oscillating
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B9/00—Generation of oscillations using transit-time effects
- H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
Landscapes
- Cold Cathode And The Manufacture (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Microwave Tubes (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
488,661. Electron multipliers. FARNSWORTH TELEVISION, Inc. Jan. 13, 1937, No. 1071. Convention date, Feb. 24, 1936. [Class 39 (i)] The cup 2 and pervious septum 5 are both coated or formed to emit secondaries on impact of primary electrons, a part of the oscillating cloud passing through the electrode 5 and being collected by the cup 9, it may be after further oscillation between this cup 9 and the septum 5 ; control anodes 7, 10 are provided and the septum is mounted in a cylinder 6. The cup 2 is connected as shown to a radio input 14, and a tuned oscillating circuit 16 is connected between the cup 2 and septum 5 ; a tuned circuit 20 is connected across the septum and the cup 9, which is also connected to the output 21. In a modification the electrodes 2, 5, 9 are connected to a tuning circuit to provide self-oscillation within the multiplier. In another construction, multiplier electrodes 25, 26, Fig. 4, alternate with collector electrodes 28, 29 the pairs being connected to independent tuned circuits 16, 20. A central pervious anode 27 is biassed by a battery. The cloud oscillating between the electrodes 25, 26 is caused to deviate by an axially arranged electromagnet 30 so that part of the cloud is taken up by the electrodes 28, 29.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65465A US2091439A (en) | 1936-02-24 | 1936-02-24 | Multipactor oscillator and amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB488661A true GB488661A (en) | 1938-07-12 |
Family
ID=22062891
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1071/37A Expired GB488661A (en) | 1936-02-24 | 1937-01-13 | Improvements in electron multipliers working as oscillators or amplifiers |
| GB6213/38A Expired GB503359A (en) | 1936-02-24 | 1938-02-28 | Improvements in or relating to electron multipliers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6213/38A Expired GB503359A (en) | 1936-02-24 | 1938-02-28 | Improvements in or relating to electron multipliers |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2091439A (en) |
| FR (2) | FR818345A (en) |
| GB (2) | GB488661A (en) |
| NL (1) | NL50856C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2416298A (en) * | 1942-11-02 | 1947-02-25 | Bell Telephone Labor Inc | Magnetron and control |
| US2925528A (en) * | 1955-12-15 | 1960-02-16 | Hartnell-Beavis Michael Carl | Electronic valves |
| US11588421B1 (en) | 2019-08-15 | 2023-02-21 | Robert M. Lyden | Receiver device of energy from the earth and its atmosphere |
-
1936
- 1936-02-24 US US65465A patent/US2091439A/en not_active Expired - Lifetime
-
1937
- 1937-01-13 GB GB1071/37A patent/GB488661A/en not_active Expired
- 1937-02-22 NL NL81363A patent/NL50856C/xx active
- 1937-02-24 FR FR818345D patent/FR818345A/en not_active Expired
- 1937-03-22 US US132330A patent/US2140285A/en not_active Expired - Lifetime
-
1938
- 1938-02-28 GB GB6213/38A patent/GB503359A/en not_active Expired
-
1939
- 1939-01-17 FR FR49494D patent/FR49494E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR818345A (en) | 1937-09-24 |
| FR49494E (en) | 1939-05-01 |
| US2140285A (en) | 1938-12-13 |
| US2091439A (en) | 1937-08-31 |
| NL50856C (en) | 1941-09-15 |
| GB503359A (en) | 1939-04-05 |
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