BE446844A - - Google Patents
Info
- Publication number
- BE446844A BE446844A BE446844DA BE446844A BE 446844 A BE446844 A BE 446844A BE 446844D A BE446844D A BE 446844DA BE 446844 A BE446844 A BE 446844A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
- H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL608928X | 1941-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE446844A true BE446844A (xx) |
Family
ID=19788041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE446844D BE446844A (xx) | 1941-08-16 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2427331A (xx) |
| BE (1) | BE446844A (xx) |
| FR (1) | FR885192A (xx) |
| GB (1) | GB608928A (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2687514A (en) * | 1948-08-27 | 1954-08-24 | Rca Corp | Two-band tuning network |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL41663C (xx) * | 1933-01-02 | |||
| GB447104A (en) * | 1935-11-21 | 1936-05-12 | Aladdin Radio Patents Ltd | Improvements in or relating to tuning systems for wireless receivers of the supersonic-heterodyne type |
| US2145371A (en) * | 1936-12-31 | 1939-01-31 | Rca Corp | Oscillator coil system for low frequency bands |
| NL58891C (xx) * | 1940-01-02 | |||
| NL61935C (xx) * | 1940-05-17 |
-
0
- BE BE446844D patent/BE446844A/xx unknown
-
1942
- 1942-08-14 FR FR885192D patent/FR885192A/fr not_active Expired
-
1943
- 1943-05-21 US US487981A patent/US2427331A/en not_active Expired - Lifetime
-
1946
- 1946-03-19 GB GB8424/46A patent/GB608928A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR885192A (fr) | 1943-09-07 |
| GB608928A (en) | 1948-09-22 |
| US2427331A (en) | 1947-09-09 |