BE481725A - - Google Patents
Info
- Publication number
- BE481725A BE481725A BE481725DA BE481725A BE 481725 A BE481725 A BE 481725A BE 481725D A BE481725D A BE 481725DA BE 481725 A BE481725 A BE 481725A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B9/00—Generation of oscillations using transit-time effects
- H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
-
- 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
- H01J21/065—Devices for short wave tubes
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL131506A NL73973C (https=) | 1947-04-09 | 1947-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE481725A true BE481725A (https=) | 1948-04-09 |
Family
ID=19781770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE481725D BE481725A (https=) | 1947-04-09 | 1948-04-09 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2596539A (https=) |
| BE (1) | BE481725A (https=) |
| CH (1) | CH266792A (https=) |
| DE (1) | DE807961C (https=) |
| FR (1) | FR964329A (https=) |
| GB (1) | GB692182A (https=) |
| NL (1) | NL73973C (https=) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE666333C (de) * | 1933-04-07 | 1938-10-17 | Philips Patentverwaltung | Schaltung fuer die Verstaerkung von Hochfrequenzschwingungen unter Verwendung von thermionischen Roehren mit zwei oder mehreren Gittern |
| US2293449A (en) * | 1939-02-27 | 1942-08-18 | Rca Corp | Amplifier circuit |
| US2276565A (en) * | 1939-05-23 | 1942-03-17 | Rca Corp | Limiting amplifier |
| GB533558A (en) * | 1939-11-07 | 1941-02-14 | Gen Electric Co Ltd | Improvements in high frequency amplifiers including thermionic valves |
| FR872802A (https=) * | 1940-05-30 | 1942-06-19 | ||
| US2489266A (en) * | 1945-09-14 | 1949-11-29 | Farnsworth Res Corp | Cathode-coupled amplifier |
-
1947
- 1947-04-09 NL NL131506A patent/NL73973C/xx active
-
1948
- 1948-03-06 US US13356A patent/US2596539A/en not_active Expired - Lifetime
- 1948-04-06 GB GB9660/48A patent/GB692182A/en not_active Expired
- 1948-04-07 CH CH266792D patent/CH266792A/de unknown
- 1948-04-07 FR FR964329D patent/FR964329A/fr not_active Expired
- 1948-04-09 BE BE481725D patent/BE481725A/xx unknown
- 1948-12-23 DE DEP26141D patent/DE807961C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH266792A (de) | 1950-02-15 |
| GB692182A (en) | 1953-06-03 |
| DE807961C (de) | 1951-07-09 |
| NL73973C (https=) | 1954-06-15 |
| FR964329A (https=) | 1950-08-10 |
| US2596539A (en) | 1952-05-13 |