GB639659A - Improvements in the amplification of low voltages by means of an electric discharge tube - Google Patents
Improvements in the amplification of low voltages by means of an electric discharge tubeInfo
- Publication number
- GB639659A GB639659A GB10412/47A GB1041247A GB639659A GB 639659 A GB639659 A GB 639659A GB 10412/47 A GB10412/47 A GB 10412/47A GB 1041247 A GB1041247 A GB 1041247A GB 639659 A GB639659 A GB 639659A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- controlled
- cathode
- discharge tube
- electric discharge
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
- H01J21/06—Tubes with a single discharge path having electrostatic control means only
- H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
- H01J21/14—Tubes with means for concentrating the electron stream, e.g. beam tetrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0029—Electron beam tubes
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Particle Accelerators (AREA)
Abstract
639,659. Electron beam valves. PHILIPS LAMPS, Ltd. April 18, 1947, No. 10412. Convention date, Aug. 22, 1944. [Class 39 (i)] An electric discharge tube in which a controlling electron beam and a controlled electron beam cross each other inside an electrode has the cathode of the controlled beam operating in the starting current range, i.e. that part of the cathode current-control voltage charac- E teristic where I=Ioe-, where E is the control Et voltage and Et the average velocity of the electrons. The current intensity of the controlling beam should preferably exceed that of the controlled beam by at least a factor of ten; this may be achieved by providing an electron multiplier between the cathode of the controlling beam and the electrode 4 in which the beams cross each other. A multiplier may be provided, as shown in the Figure, between the electrode 4 and the anode 14 of the controlled beam. The electrode 4 may be provided with partitions 5 to prevent secondary emission therefrom.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL639659X | 1944-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB639659A true GB639659A (en) | 1950-07-05 |
Family
ID=19788976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10412/47A Expired GB639659A (en) | 1944-08-22 | 1947-04-18 | Improvements in the amplification of low voltages by means of an electric discharge tube |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE467095A (en) |
| DE (1) | DE809220C (en) |
| GB (1) | GB639659A (en) |
-
0
- BE BE467095D patent/BE467095A/xx unknown
-
1947
- 1947-04-18 GB GB10412/47A patent/GB639659A/en not_active Expired
-
1948
- 1948-10-26 DE DEP19560A patent/DE809220C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE467095A (en) | |
| DE809220C (en) | 1951-07-26 |
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