BE423304A - - Google Patents
Info
- Publication number
- BE423304A BE423304A BE423304DA BE423304A BE 423304 A BE423304 A BE 423304A BE 423304D A BE423304D A BE 423304DA BE 423304 A BE423304 A BE 423304A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes
-
- 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
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US501211XA | 1936-08-29 | 1936-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE423304A true BE423304A (en:Method) |
Family
ID=21963483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE423304D BE423304A (en:Method) | 1936-08-29 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2231867A (en:Method) |
| BE (1) | BE423304A (en:Method) |
| DE (1) | DE685150C (en:Method) |
| GB (1) | GB501211A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2430983A (en) * | 1939-07-24 | 1947-11-18 | United Geophysical Company Inc | Seismic amplifying system |
| US3231686A (en) * | 1961-06-14 | 1966-01-25 | Maico Electronics Inc | Acoustic apparatus |
-
0
- BE BE423304D patent/BE423304A/xx unknown
- US US2231867D patent/US2231867A/en not_active Expired - Lifetime
-
1937
- 1937-08-30 GB GB23676/37A patent/GB501211A/en not_active Expired
- 1937-08-31 DE DER100159D patent/DE685150C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE685150C (de) | 1939-12-13 |
| GB501211A (en) | 1939-02-23 |
| US2231867A (en) | 1941-02-18 |