BE442181A - - Google Patents
Info
- Publication number
- BE442181A BE442181A BE442181DA BE442181A BE 442181 A BE442181 A BE 442181A BE 442181D A BE442181D A BE 442181DA BE 442181 A BE442181 A BE 442181A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
- H01J43/025—Circuits therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electron Sources, Ion Sources (AREA)
- Cold Cathode And The Manufacture (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1853/40A GB538381A (en) | 1940-01-30 | 1940-01-30 | Improvements in or relating to thermionic valve apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE442181A true BE442181A (en:Method) |
Family
ID=9729147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE442181D BE442181A (en:Method) | 1940-01-30 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2294782A (en:Method) |
| BE (1) | BE442181A (en:Method) |
| FR (1) | FR869421A (en:Method) |
| GB (1) | GB538381A (en:Method) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2577454A (en) * | 1946-08-22 | 1951-12-04 | Hartford Nat Bank & Trust Co | Cavity-resonator tube and associated circuit |
| US2467840A (en) * | 1946-12-20 | 1949-04-19 | George E Mallinckrodt | Direct-current transformer |
| GB683061A (en) * | 1948-01-24 | 1952-11-19 | Emi Ltd | Improvements relating to thermionic valves utilising secondary electron emission amplification |
| US2617948A (en) * | 1948-11-18 | 1952-11-11 | Heinz E Kallmann | Electron multiplying device |
| US2731562A (en) * | 1949-10-07 | 1956-01-17 | Japan Broadcasting Corp | System of controlling electron current in multiple electrode tubes |
| US2949578A (en) * | 1957-01-29 | 1960-08-16 | Jan A Narud | Millimicrosecond pulse circuits |
| US3048788A (en) * | 1958-08-15 | 1962-08-07 | Edgerton Germeshausen And Grie | Sweep signal generating system |
| US6642657B2 (en) * | 1994-12-01 | 2003-11-04 | Frederick M. Mako | Robust pierce gun having multiple transmitting and emitting section |
| WO1997044805A1 (en) * | 1996-05-22 | 1997-11-27 | Schwartz, Ansel, M. | Multi-stage electron gun having an electrostatic cavity |
-
0
- BE BE442181D patent/BE442181A/xx unknown
-
1940
- 1940-01-30 GB GB1853/40A patent/GB538381A/en not_active Expired
-
1941
- 1941-01-21 FR FR869421D patent/FR869421A/fr not_active Expired
- 1941-01-23 US US375594A patent/US2294782A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB538381A (en) | 1941-07-31 |
| FR869421A (fr) | 1942-02-02 |
| US2294782A (en) | 1942-09-01 |