BE440289A - - Google Patents
Info
- Publication number
- BE440289A BE440289A BE440289DA BE440289A BE 440289 A BE440289 A BE 440289A BE 440289D A BE440289D A BE 440289DA BE 440289 A BE440289 A BE 440289A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/12—Electrically-operated arrangements for indicating correct tuning
- H03J3/14—Visual indication, e.g. magic eye
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
- H03G5/18—Automatic control in untuned amplifiers
- H03G5/20—Automatic control in untuned amplifiers having discharge tubes
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- 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
- H03G9/10—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for tone control and volume expansion or compression
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2325512X | 1940-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE440289A true BE440289A (US07860544-20101228-C00003.png) |
Family
ID=7994761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE440289D BE440289A (US07860544-20101228-C00003.png) | 1940-01-26 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2325512A (US07860544-20101228-C00003.png) |
| BE (1) | BE440289A (US07860544-20101228-C00003.png) |
| FR (1) | FR51544E (US07860544-20101228-C00003.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2999210A (en) * | 1956-11-30 | 1961-09-05 | Korting Radio Werke G M B H | Automatic volume expander |
-
0
- BE BE440289D patent/BE440289A/xx unknown
-
1941
- 1941-05-17 FR FR51544D patent/FR51544E/fr not_active Expired
- 1941-06-14 US US398085A patent/US2325512A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR51544E (fr) | 1942-10-05 |
| US2325512A (en) | 1943-07-27 |
