FR844223A - Perfectionnements aux systèmes de commande d'accord pour appareils radiorécepteurs et analogues - Google Patents
Perfectionnements aux systèmes de commande d'accord pour appareils radiorécepteurs et analoguesInfo
- Publication number
- FR844223A FR844223A FR844223DA FR844223A FR 844223 A FR844223 A FR 844223A FR 844223D A FR844223D A FR 844223DA FR 844223 A FR844223 A FR 844223A
- Authority
- FR
- France
- Prior art keywords
- control systems
- tuning control
- radio receivers
- receivers
- radio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/26—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection operated by hand
- H03J5/32—Stationary tuning circuits or elements selected by push-button
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB221469X | 1937-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR844223A true FR844223A (fr) | 1939-07-20 |
Family
ID=10174651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR844223D Expired FR844223A (fr) | 1937-07-20 | 1938-07-20 | Perfectionnements aux systèmes de commande d'accord pour appareils radiorécepteurs et analogues |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE429266A (enrdf_load_stackoverflow) |
| CH (1) | CH221469A (enrdf_load_stackoverflow) |
| FR (1) | FR844223A (enrdf_load_stackoverflow) |
| GB (1) | GB498927A (enrdf_load_stackoverflow) |
-
0
- BE BE429266D patent/BE429266A/xx unknown
-
1937
- 1937-07-20 GB GB20087/37A patent/GB498927A/en not_active Expired
-
1938
- 1938-07-20 FR FR844223D patent/FR844223A/fr not_active Expired
- 1938-07-20 CH CH221469D patent/CH221469A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB498927A (en) | 1939-01-17 |
| CH221469A (fr) | 1942-05-31 |
| BE429266A (enrdf_load_stackoverflow) |
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