BE441790A - - Google Patents
Info
- Publication number
- BE441790A BE441790A BE441790DA BE441790A BE 441790 A BE441790 A BE 441790A BE 441790D A BE441790D A BE 441790DA BE 441790 A BE441790 A BE 441790A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/42—Modifications of amplifiers to extend the bandwidth
- H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
- H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US299065A US2231374A (en) | 1939-10-12 | 1939-10-12 | Negative feedback amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE441790A true BE441790A (en) | 1941-07-31 |
Family
ID=23153168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE441790D BE441790A (en) | 1939-10-12 | 1941-06-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2231374A (en) |
| BE (1) | BE441790A (en) |
| FR (1) | FR870440A (en) |
| GB (1) | GB540630A (en) |
| NL (2) | NL108864B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB575639A (en) * | 1943-12-14 | 1946-02-27 | Bertram Morton Hadfield | Improvements in or relating to thermionic valve amplifiers |
| US2428363A (en) * | 1944-07-26 | 1947-10-07 | Bell Telephone Labor Inc | Negative feed-back amplifier |
| US2692377A (en) * | 1946-01-16 | 1954-10-19 | Jr George A Brettell | Position plotter |
| US2658958A (en) * | 1949-07-16 | 1953-11-10 | Wilcox Gay Corp | Negative feedback frequency response compensation amplifier system |
| US2865986A (en) * | 1953-08-03 | 1958-12-23 | Louis W Parker | High power frequency discriminator |
| US3443096A (en) * | 1964-02-29 | 1969-05-06 | Hitachi Ltd | Circuit arrangement for use in radiation measurements and the like purposes |
-
1939
- 1939-10-12 US US299065A patent/US2231374A/en not_active Expired - Lifetime
-
1940
- 1940-07-18 GB GB11830/40A patent/GB540630A/en not_active Expired
-
1941
- 1941-02-27 FR FR870440D patent/FR870440A/en not_active Expired
- 1941-06-19 BE BE441790D patent/BE441790A/xx unknown
-
1942
- 1942-12-10 NL NL108864D patent/NL108864B/xx unknown
- 1942-12-10 NL NL108864A patent/NL69414C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| FR870440A (en) | 1942-03-11 |
| NL108864B (en) | |
| GB540630A (en) | 1941-10-23 |
| US2231374A (en) | 1941-02-11 |
| NL69414C (en) | 1952-02-15 |