GB708216A - Improvements in and relating to magnetrons - Google Patents
Improvements in and relating to magnetronsInfo
- Publication number
- GB708216A GB708216A GB15760/52A GB1576052A GB708216A GB 708216 A GB708216 A GB 708216A GB 15760/52 A GB15760/52 A GB 15760/52A GB 1576052 A GB1576052 A GB 1576052A GB 708216 A GB708216 A GB 708216A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- discs
- cathode
- elements
- supported
- 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
- H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
- H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
- H01J25/54—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having only one cavity or other resonator, e.g. neutrode tubes
- H01J25/56—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having only one cavity or other resonator, e.g. neutrode tubes with interdigital arrangements of anodes, e.g. turbator tube
Landscapes
- Microwave Tubes (AREA)
Abstract
708,216. Magnetrons. BRITISH THOMSONHOUSTON CO., Ltd. June 23, 1952 [June 27, 1951], No. 15760/52. Class 39(1) A magnetron comprises a plurality of elongated anode elements 19, 20 in parallel mutually spaced relation forming a closed array, two anode ring portions 17, 18 mounted in spaced coaxial relationship, two discs 14, 15 of insulating material each secured to one of the ring portions, alternate ones of the anode elements being supported from one of the ring portions and the disc secured to the other ring portion, and a cathode 13 supported between the discs in accurately spaced relation within the array of anode elements. The discs 14, 15, which may be of mica, may be clamped to the anode rings by tabs 21 provided on the anode rings; they are provided with slots 24, through which the anode elements 19, 20 pass, and with central apertures in which the cathode 13 is supported. The discs serve as supports and also prevent electrons escaping from the discharge space; the emissive coating 25 on the cathode does not extend to the discs so that with low anode voltages electrons reach the discs with only a small velocity and do not damage then or cause secondary emission. If higher anode voltages are used the cathode may be provided with flanges or embossments to prevent electrons bombarding the discs. The electrode structure may be supported by the anode leads 6, 7, which are welded to two of the tabs 21. The anode leads 6, 7 provide an output to an external circuit which may be adjusted to tune the magnetron. The anode rings and elements are of non- magnetic material such as stainless steel, and the envelope may be of glass or of a non-magnetic metal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US233798A US2617956A (en) | 1951-06-27 | 1951-06-27 | High-frequency discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB708216A true GB708216A (en) | 1954-04-28 |
Family
ID=22878737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15760/52A Expired GB708216A (en) | 1951-06-27 | 1952-06-23 | Improvements in and relating to magnetrons |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2617956A (en) |
| FR (1) | FR1063230A (en) |
| GB (1) | GB708216A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE528263A (en) * | 1953-04-21 | |||
| US2860269A (en) * | 1954-07-02 | 1958-11-11 | Jefferson Sidney | Gas discharge devices |
| US2928925A (en) * | 1956-08-15 | 1960-03-15 | Rca Corp | Getter structure |
| GB1096591A (en) * | 1964-12-31 | 1967-12-29 | M O Valve Co Ltd | Improvements in or relating to electric valves |
| USD893460S1 (en) * | 2018-04-11 | 2020-08-18 | Echowell Electronic Co., Ltd. | Vacuum tube speaker |
| USD942534S1 (en) * | 2019-10-19 | 2022-02-01 | Mahdi Al-Husseini | Calculator with electronic tube display and keypad |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2144222A (en) * | 1935-08-15 | 1939-01-17 | Telefunken Gmbh | Electron discharge device |
| US2147159A (en) * | 1937-04-17 | 1939-02-14 | Cie Generale De Telegraphic Sa | Magnetron oscillator and detector |
-
1951
- 1951-06-27 US US233798A patent/US2617956A/en not_active Expired - Lifetime
-
1952
- 1952-06-23 GB GB15760/52A patent/GB708216A/en not_active Expired
- 1952-06-27 FR FR1063230D patent/FR1063230A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1063230A (en) | 1954-04-30 |
| US2617956A (en) | 1952-11-11 |
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