GB625271A - Improvements in and relating to electronic valve devices - Google Patents
Improvements in and relating to electronic valve devicesInfo
- Publication number
- GB625271A GB625271A GB2295646A GB2295646A GB625271A GB 625271 A GB625271 A GB 625271A GB 2295646 A GB2295646 A GB 2295646A GB 2295646 A GB2295646 A GB 2295646A GB 625271 A GB625271 A GB 625271A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plates
- anodes
- cathode
- deflection
- deflection plates
- 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
- H01J25/78—Tubes with electron stream modulated by deflection in a resonator
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Particle Accelerators (AREA)
Abstract
625,271. Electron beam valves. METSON, G. H. Aug. 1, 1946, No. 22956. [Class 39 (i)] In a beam deflection tube the transit time of the electrons through the deflection plates is increased by using crossed magnetic and electric fields so that the electrons follow a cycloidal path from cathode .to anode. In Fig. 1 a steady magnetic field is applied in the direction shown. An electric field at right-angles to this is applied by two plates 12. Deflection plates 6 enable the beam to be deflected on to one of the anodes 8. The cathode is a copper cylinder coated with alkaline earth oxides and is supported from one of the plates 12, Fig. 5 (not shown). The anodes may be two plates separated by a narrow slot centrally placed with respect to the undeflected beam. In another form, Fig. 6, the electric field is established between a central wire 21 and a curved outer surface 22 coaxial with the wire ; a magnetic field is applied along the axis. 23 is the cathode, 24 the anodes, and 25 the deflection plates. In either embodiment small negative potentials may be applied to the deflection plates to assist focusing, or special focusing electrodes may be used. A grid electrode may be provided and may be adjacent to the anodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2295646A GB625271A (en) | 1946-08-01 | 1946-08-01 | Improvements in and relating to electronic valve devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2295646A GB625271A (en) | 1946-08-01 | 1946-08-01 | Improvements in and relating to electronic valve devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB625271A true GB625271A (en) | 1949-06-24 |
Family
ID=10187785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2295646A Expired GB625271A (en) | 1946-08-01 | 1946-08-01 | Improvements in and relating to electronic valve devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB625271A (en) |
-
1946
- 1946-08-01 GB GB2295646A patent/GB625271A/en not_active Expired
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