GB500362A - Improvements in or relating to electron discharge tubes - Google Patents
Improvements in or relating to electron discharge tubesInfo
- Publication number
- GB500362A GB500362A GB2180137A GB2180137A GB500362A GB 500362 A GB500362 A GB 500362A GB 2180137 A GB2180137 A GB 2180137A GB 2180137 A GB2180137 A GB 2180137A GB 500362 A GB500362 A GB 500362A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- apertures
- controlling electrode
- concentrically
- cathode
- 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
- 238000001816 cooling Methods 0.000 abstract 1
- 239000013256 coordination polymer Substances 0.000 abstract 1
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
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
Landscapes
- Particle Accelerators (AREA)
- Microwave Tubes (AREA)
Abstract
500,362. Electron - beam valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BRETT, G. F. Aug. 7, 1937, No. 21801. [Class 39 (i)] Apertures in a controlling electrode G and an accelerating anode A are aligned with a cathode C, and an additional outer anode AA has a surface out of the direct line through the apertures. A magnetic field is applied at right angles to the line through the apertures so that electrons passing through the apertures proceed in a bent path CP. The rectilinear, cathode is concentrically within the controlling electrode, which is concentrically within, and close to, the accelerating anode, which is concentrically within, and comparatively well spaced from, the additional anode. The slots in the controlling electrode and in the accelerating anode are of the same length as the cathode. The operating parameters are so chosen and the valve so dimensioned that the path of the electrons just fail to touch the external anode when the two anodes are at equal potentials. Oscillations produced by the valve are modulated by varying the potential of the controlling electrode. The anodes may be carbonized or have cooling fins.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2180137A GB500362A (en) | 1937-08-07 | 1937-08-07 | Improvements in or relating to electron discharge tubes |
| DEM142472D DE761408C (en) | 1937-08-07 | 1938-08-07 | Circuit arrangement for generating ultra-high frequency electromagnetic oscillations by means of a magnetic field tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2180137A GB500362A (en) | 1937-08-07 | 1937-08-07 | Improvements in or relating to electron discharge tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB500362A true GB500362A (en) | 1939-02-07 |
Family
ID=10169031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2180137A Expired GB500362A (en) | 1937-08-07 | 1937-08-07 | Improvements in or relating to electron discharge tubes |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE761408C (en) |
| GB (1) | GB500362A (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE391761C (en) * | 1921-06-25 | 1924-03-08 | Erich Habann | Highly evacuated discharge vessel |
| GB351419A (en) * | 1930-03-24 | 1931-06-24 | Lissen Ltd | Improvements in and relating to thermionic valves |
| NL37032C (en) * | 1932-06-17 | |||
| US2055655A (en) * | 1933-04-21 | 1936-09-29 | Bell Telephone Labor Inc | Electron lens |
-
1937
- 1937-08-07 GB GB2180137A patent/GB500362A/en not_active Expired
-
1938
- 1938-08-07 DE DEM142472D patent/DE761408C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE761408C (en) | 1953-05-04 |
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