GB509750A - Improvements in or relating to the electrical control of the tuning mechanism of radio-receiving apparatus - Google Patents
Improvements in or relating to the electrical control of the tuning mechanism of radio-receiving apparatusInfo
- Publication number
- GB509750A GB509750A GB3896/39A GB389639A GB509750A GB 509750 A GB509750 A GB 509750A GB 3896/39 A GB3896/39 A GB 3896/39A GB 389639 A GB389639 A GB 389639A GB 509750 A GB509750 A GB 509750A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- contacts
- condenser
- disc
- motor
- 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
- 230000000994 depressogenic effect Effects 0.000 abstract 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
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
- H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
- H03J5/14—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings operated by auxiliary power
- H03J5/146—Settings desired by a switch controlled together with the tuning member and which stops the control as soon as a desired position is reached
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL208104X | 1938-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB509750A true GB509750A (en) | 1939-07-20 |
Family
ID=19778666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3896/39A Expired GB509750A (en) | 1938-02-08 | 1939-02-06 | Improvements in or relating to the electrical control of the tuning mechanism of radio-receiving apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2306288A (enrdf_load_stackoverflow) |
| BE (1) | BE432625A (enrdf_load_stackoverflow) |
| CH (1) | CH208104A (enrdf_load_stackoverflow) |
| FR (1) | FR850002A (enrdf_load_stackoverflow) |
| GB (1) | GB509750A (enrdf_load_stackoverflow) |
-
0
- BE BE432625D patent/BE432625A/xx unknown
-
1939
- 1939-02-06 GB GB3896/39A patent/GB509750A/en not_active Expired
- 1939-02-07 CH CH208104D patent/CH208104A/de unknown
- 1939-02-07 FR FR850002D patent/FR850002A/fr not_active Expired
- 1939-02-07 US US255005A patent/US2306288A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR850002A (fr) | 1939-12-06 |
| BE432625A (enrdf_load_stackoverflow) | |
| US2306288A (en) | 1942-12-22 |
| CH208104A (de) | 1939-12-31 |
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