BE454669A - - Google Patents
Info
- Publication number
- BE454669A BE454669A BE454669DA BE454669A BE 454669 A BE454669 A BE 454669A BE 454669D A BE454669D A BE 454669DA BE 454669 A BE454669 A BE 454669A
- 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
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/46—Reflex amplifiers
- H03F3/48—Reflex amplifiers with tubes only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H03G3/04—Manually-operated control in untuned amplifiers
- H03G3/06—Manually-operated control in untuned amplifiers having discharge tubes
- H03G3/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback
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- 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
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/04—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes
- H03G9/06—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control
- H03G9/08—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control incorporating negative feedback
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL624010X | 1943-03-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE454669A true BE454669A (fr) |
Family
ID=19788516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE454669D BE454669A (fr) | 1943-03-05 |
Country Status (4)
Country | Link |
---|---|
US (1) | US2503787A (fr) |
BE (1) | BE454669A (fr) |
FR (1) | FR902400A (fr) |
GB (1) | GB624010A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB682140A (en) * | 1950-09-27 | 1952-11-05 | Amalgamated Wireless Australas | Improvements in volume control arrangements for radio receivers |
US2848615A (en) * | 1956-05-21 | 1958-08-19 | Philco Corp | Frequency control system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE362743A (fr) * | 1928-09-19 | |||
US2159453A (en) * | 1929-06-13 | 1939-05-23 | King Mfg Corp | Dual action volume control |
US1988370A (en) * | 1929-12-06 | 1935-01-15 | Philadelphia Storage Battery | Automatic volume control |
GB396822A (en) * | 1932-02-18 | 1933-08-17 | Gen Electric Co Ltd | Improvements in electric wave signalling apparatus |
US2115842A (en) * | 1933-04-18 | 1938-05-03 | Emi Ltd | Volume control arrangement |
US2205243A (en) * | 1938-12-15 | 1940-06-18 | Gen Electric | Amplifier |
-
0
- BE BE454669D patent/BE454669A/xx unknown
-
1944
- 1944-03-03 FR FR902400D patent/FR902400A/fr not_active Expired
-
1946
- 1946-09-06 GB GB26869/46A patent/GB624010A/en not_active Expired
-
1947
- 1947-07-30 US US764754A patent/US2503787A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB624010A (en) | 1949-05-26 |
US2503787A (en) | 1950-04-11 |
FR902400A (fr) | 1945-08-29 |