FR854917A - Electric wave amplifier systems - Google Patents
Electric wave amplifier systemsInfo
- Publication number
- FR854917A FR854917A FR854917DA FR854917A FR 854917 A FR854917 A FR 854917A FR 854917D A FR854917D A FR 854917DA FR 854917 A FR854917 A FR 854917A
- Authority
- FR
- France
- Prior art keywords
- electric wave
- wave amplifier
- amplifier systems
- systems
- electric
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB227708X | 1938-07-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR854917A true FR854917A (en) | 1940-04-27 |
Family
ID=10184796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR854917D Expired FR854917A (en) | 1938-07-05 | 1939-05-17 | Electric wave amplifier systems |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE434920A (en) |
CH (1) | CH227708A (en) |
DE (1) | DE896057C (en) |
FR (1) | FR854917A (en) |
GB (1) | GB516697A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE857401C (en) * | 1942-05-28 | 1952-11-27 | Siemens Ag | Multi-stage amplifier with gain control by changing the negative feedback |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE893205C (en) * | 1949-11-11 | 1953-10-15 | Atlas Werke Ag | Circuit for amplifying and measuring the difference between variable, in particular biological, voltages |
DE820451C (en) * | 1950-02-09 | 1951-11-12 | Telefunken Gmbh | Low frequency amplifier with negative voltage feedback |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB317005A (en) * | 1928-08-08 | 1930-10-22 | Standard Telephones Cables Ltd | Electric signal wave amplifying and translation systems |
GB435646A (en) * | 1933-09-26 | 1935-09-25 | Standard Telephones Cables Ltd | Vacuum tube amplifiers |
-
0
- BE BE434920D patent/BE434920A/xx unknown
-
1938
- 1938-07-05 GB GB19901/38A patent/GB516697A/en not_active Expired
-
1939
- 1939-05-17 FR FR854917D patent/FR854917A/en not_active Expired
- 1939-05-31 CH CH227708D patent/CH227708A/en unknown
- 1939-07-02 DE DEI3208D patent/DE896057C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE857401C (en) * | 1942-05-28 | 1952-11-27 | Siemens Ag | Multi-stage amplifier with gain control by changing the negative feedback |
Also Published As
Publication number | Publication date |
---|---|
GB516697A (en) | 1940-01-09 |
CH227708A (en) | 1943-06-30 |
DE896057C (en) | 1953-11-09 |
BE434920A (en) |
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