GB490272A - Improvements in or relating to circuit-arrangements for facilitating correct tuning of radio receiving apparatus - Google Patents
Improvements in or relating to circuit-arrangements for facilitating correct tuning of radio receiving apparatusInfo
- Publication number
- GB490272A GB490272A GB29722/37A GB2972237A GB490272A GB 490272 A GB490272 A GB 490272A GB 29722/37 A GB29722/37 A GB 29722/37A GB 2972237 A GB2972237 A GB 2972237A GB 490272 A GB490272 A GB 490272A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- diode
- relay
- frequency
- tuning
- 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
- 230000000694 effects Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
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
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE203818X | 1936-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB490272A true GB490272A (en) | 1938-08-11 |
Family
ID=5778561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29722/37A Expired GB490272A (en) | 1936-11-02 | 1937-10-30 | Improvements in or relating to circuit-arrangements for facilitating correct tuning of radio receiving apparatus |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US2189050A (de) |
| AT (1) | AT157218B (de) |
| BE (1) | BE424409A (de) |
| CH (1) | CH203818A (de) |
| DK (1) | DK56624C (de) |
| FR (1) | FR828591A (de) |
| GB (1) | GB490272A (de) |
| NL (1) | NL54628C (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2571309A (en) * | 1946-02-26 | 1951-10-16 | Philco Corp | Tuning aid for frequency- modulation receivers |
-
0
- NL NL54628D patent/NL54628C/xx active
- BE BE424409D patent/BE424409A/xx unknown
-
1937
- 1937-10-15 US US169100A patent/US2189050A/en not_active Expired - Lifetime
- 1937-10-30 GB GB29722/37A patent/GB490272A/en not_active Expired
- 1937-11-01 DK DK56624D patent/DK56624C/da active
- 1937-11-01 CH CH203818D patent/CH203818A/de unknown
- 1937-11-02 AT AT157218D patent/AT157218B/de active
- 1937-11-02 FR FR828591D patent/FR828591A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH203818A (de) | 1939-03-31 |
| AT157218B (de) | 1939-10-10 |
| FR828591A (fr) | 1938-05-20 |
| BE424409A (de) | |
| DK56624C (da) | 1939-09-04 |
| US2189050A (en) | 1940-02-06 |
| NL54628C (de) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2174566A (en) | Automatic tuning arrangement | |
| GB637507A (en) | Improvements in or relating to circuit-arrangements adapted for the supply of electric oscillations to a load | |
| GB469077A (en) | Improvements in or relating to wireless and like receivers | |
| GB490272A (en) | Improvements in or relating to circuit-arrangements for facilitating correct tuning of radio receiving apparatus | |
| GB541006A (en) | Television synchronizing and control system | |
| GB991505A (en) | Electronic tuner for heterodyne radio receivers | |
| GB649471A (en) | Improvements in or relating to television receivers | |
| US2144822A (en) | Circuit arrangement for facilitating the tuning of radio receiving sets | |
| US2047653A (en) | Detector-oscillator circuit | |
| GB453261A (en) | Improvements in or relating to circuit arrangements for suppressing disturbances in wireless receiving sets | |
| GB551970A (en) | Improvements in combined carrier-signal frequency detectors and control-voltage supply systems | |
| GB492635A (en) | Improvements in superheterodyne receiving apparatus | |
| GB487170A (en) | Arrangement for automatic tuning of radio receivers or the like | |
| US2569296A (en) | Frequency converter with plural selectable oscillators | |
| GB445350A (en) | Automatic tuning for radio receivers | |
| GB493511A (en) | Automatic frequency control circuits for radio receivers | |
| GB501760A (en) | Improvements in radio and like receivers | |
| GB410549A (en) | Improvements in muting devices for radio-receiving apparatus | |
| GB477303A (en) | Improvements in amplification control for radio receivers | |
| GB494577A (en) | Improvements in automatic tuning apparatus for wireless receivers | |
| GB531612A (en) | Radio apparatus or the like | |
| GB399068A (en) | Improvements in or relating to thermionic amplifying arrangements suitable for use in radio receivers | |
| GB481858A (en) | Improved arrangement for facilitating the tuning of radio receiving sets | |
| GB474967A (en) | Arrangement for automatic tuning of radio receivers or the like | |
| GB444391A (en) | Improvements in and relating to wireless and like receivers |