GB745810A - Improvements in or relating to magnetrons - Google Patents
Improvements in or relating to magnetronsInfo
- Publication number
- GB745810A GB745810A GB2866551A GB2866551A GB745810A GB 745810 A GB745810 A GB 745810A GB 2866551 A GB2866551 A GB 2866551A GB 2866551 A GB2866551 A GB 2866551A GB 745810 A GB745810 A GB 745810A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- sleeves
- copper
- gripped
- sleeve
- 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
- H01J25/58—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 a number of resonators; having a composite resonator, e.g. a helix
- H01J25/587—Multi-cavity magnetrons
Landscapes
- Microwave Tubes (AREA)
Abstract
745,810. Magnetrons. GENERAL ELECTRIC CO., Ltd., and ROBERTSHAW, R. G. March 5, 1953 [Dec. 6, 1951], No. 28665/51. Class 39 (1). The cathode 34 of a multicavity magnetron comprises a shell of refractory metal fitted at each end into a sleeve 19 also of refractory metal. Iron pole-pieces 5 are brazed to copper collars 7 secured to the copper anode block 2 with gold seals 9. The cathode 34 is of tantalum with a coating of thoria and is gripped by small flanges 35 in the supporting sleeves to reduce heat transfer. Flanges 37 on the sleeves effectively close the annular gap between the sleeves and the anode block to prevent electrons leaving the chamber 3. The sleeves 19 are of molybdenum, coated with alumina to avoid electron emission, and are supported by tungsten rods 23 within glass thimbles 26 sealed to copper tubes 24, which are mounted to allow radial adjustment of the cathode to a minimumcurrent position within the chamber 3. One end of the cathode is gripped in a molybdenum member 22 joining the sleeve 19 to the rod 23. The magnetron is stated to be designed for minimum-voltage operation and for a wavelength of a few millimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2866551A GB745810A (en) | 1951-12-06 | 1951-12-06 | Improvements in or relating to magnetrons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2866551A GB745810A (en) | 1951-12-06 | 1951-12-06 | Improvements in or relating to magnetrons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB745810A true GB745810A (en) | 1956-02-29 |
Family
ID=10279195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2866551A Expired GB745810A (en) | 1951-12-06 | 1951-12-06 | Improvements in or relating to magnetrons |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB745810A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2945159A (en) * | 1957-03-25 | 1960-07-12 | Bomac Lab Inc | Magnetron device |
-
1951
- 1951-12-06 GB GB2866551A patent/GB745810A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2945159A (en) * | 1957-03-25 | 1960-07-12 | Bomac Lab Inc | Magnetron device |
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