GB637375A - Improvements in or relating to ultra-high-frequency amplifying circuits - Google Patents
Improvements in or relating to ultra-high-frequency amplifying circuitsInfo
- Publication number
- GB637375A GB637375A GB37258/46A GB3725846A GB637375A GB 637375 A GB637375 A GB 637375A GB 37258/46 A GB37258/46 A GB 37258/46A GB 3725846 A GB3725846 A GB 3725846A GB 637375 A GB637375 A GB 637375A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- electrode
- electrodes
- electron beam
- control electrode
- 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
- H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
- H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
Landscapes
- Details Of Television Scanning (AREA)
Abstract
637,375. Electron beam valves. PHILIPS LAMPS, Ltd. Dec. 18, 1946, No. 37258. Convention date, Sept. 10, 1943. [Class 39 (i)] An electron beam tube contains in sequence a cathode 1, one or two electrodes 3, 4 at positive mean potential, a control electrode 2 of cathode mean potential, an output electrode system 6, 7 and a collecting electrode 5 ; the voltages on the electrodes and the electrode spacing are so chosen that the transit time of the electrons from cathode to control electrode is an integral multiple of half a cycle. Electrons repelled from the control electrode travel back to the cathode in the same time and cause an increase in space charge which reduces cathode emission, thus reducing the out-ofphase current. Electrode 4 suppresses secondary emission, and a magnetic focusing field may be provided. At a wavelength of 15 cm. the distance from cathode to control grid may be 8 mm. when the potentials of electrodes 3, 4, 5, 6, 7 is about 700 volts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL637375X | 1943-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB637375A true GB637375A (en) | 1950-05-17 |
Family
ID=19788908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37258/46A Expired GB637375A (en) | 1943-09-10 | 1946-12-18 | Improvements in or relating to ultra-high-frequency amplifying circuits |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR906915A (en) |
| GB (1) | GB637375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3032674A (en) * | 1957-10-30 | 1962-05-01 | Rca Corp | Electron gun structure for cathode ray tube |
-
1944
- 1944-09-08 FR FR906915D patent/FR906915A/en not_active Expired
-
1946
- 1946-12-18 GB GB37258/46A patent/GB637375A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3032674A (en) * | 1957-10-30 | 1962-05-01 | Rca Corp | Electron gun structure for cathode ray tube |
Also Published As
| Publication number | Publication date |
|---|---|
| FR906915A (en) | 1946-02-25 |
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