BE454642A - - Google Patents
Info
- Publication number
- BE454642A BE454642A BE454642DA BE454642A BE 454642 A BE454642 A BE 454642A BE 454642D A BE454642D A BE 454642DA BE 454642 A BE454642 A BE 454642A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/02—Manually-operated control
- H03G5/04—Manually-operated control in untuned amplifiers
- H03G5/06—Manually-operated control in untuned amplifiers having discharge tubes
- H03G5/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback
-
- 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)
- Networks Using Active Elements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL242465X | 1943-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE454642A true BE454642A (en:Method) |
Family
ID=19780650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE454642D BE454642A (en:Method) | 1943-03-04 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2494426A (en:Method) |
| BE (1) | BE454642A (en:Method) |
| CH (1) | CH242465A (en:Method) |
| DE (1) | DE917010C (en:Method) |
| FR (1) | FR902369A (en:Method) |
| GB (1) | GB634096A (en:Method) |
| NL (1) | NL59734C (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2593600A (en) * | 1951-05-01 | 1952-04-22 | Rca Corp | Signal selection |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2102671A (en) * | 1929-05-21 | 1937-12-21 | Bell Telephone Labor Inc | Wave translation system |
| GB441626A (en) * | 1933-12-21 | 1936-01-23 | Standard Telephones Cables Ltd | Improvements in vacuum tube amplifiers |
| GB484332A (en) * | 1936-12-31 | 1938-05-04 | Gen Electric Co Ltd | Improvements in or relating to electrical amplifier circuits employing negative reaction |
| US2196844A (en) * | 1939-04-26 | 1940-04-09 | Bell Telephone Labor Inc | Wave amplifying system |
-
0
- NL NL59734D patent/NL59734C/xx active
- BE BE454642D patent/BE454642A/xx unknown
-
1944
- 1944-02-29 DE DEN2235D patent/DE917010C/de not_active Expired
- 1944-03-02 FR FR902369D patent/FR902369A/fr not_active Expired
- 1944-05-23 CH CH242465D patent/CH242465A/de unknown
-
1946
- 1946-07-02 US US680890A patent/US2494426A/en not_active Expired - Lifetime
- 1946-09-20 GB GB28253/46A patent/GB634096A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB634096A (en) | 1950-03-15 |
| NL59734C (en:Method) | |
| CH242465A (de) | 1946-05-15 |
| US2494426A (en) | 1950-01-10 |
| DE917010C (de) | 1954-08-23 |
| FR902369A (fr) | 1945-08-29 |