GB487880A - Improvements in or relating to radio and like receivers - Google Patents
Improvements in or relating to radio and like receiversInfo
- Publication number
- GB487880A GB487880A GB35888/36A GB3588836A GB487880A GB 487880 A GB487880 A GB 487880A GB 35888/36 A GB35888/36 A GB 35888/36A GB 3588836 A GB3588836 A GB 3588836A GB 487880 A GB487880 A GB 487880A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- frequency
- coil
- coupled
- circuit
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000003302 ferromagnetic material Substances 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0153—Electrical filters; Controlling thereof
- H03H7/0161—Bandpass filters
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Networks Using Active Elements (AREA)
- Circuits Of Receivers In General (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB35888/36A GB487880A (en) | 1936-12-31 | 1936-12-31 | Improvements in or relating to radio and like receivers |
US177191A US2217294A (en) | 1936-12-31 | 1937-11-30 | Automatic frequency control |
FR831368D FR831368A (fr) | 1936-12-31 | 1937-12-28 | Perfectionnements aux radiorécepteurs et appareils analogues |
DEM140246D DE757405C (de) | 1936-12-31 | 1937-12-30 | Einrichtung zur selbsttaetigen Scharfabstimmung eines Empfaengers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB35888/36A GB487880A (en) | 1936-12-31 | 1936-12-31 | Improvements in or relating to radio and like receivers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB487880A true GB487880A (en) | 1938-06-28 |
Family
ID=10382649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35888/36A Expired GB487880A (en) | 1936-12-31 | 1936-12-31 | Improvements in or relating to radio and like receivers |
Country Status (4)
Country | Link |
---|---|
US (1) | US2217294A (fr) |
DE (1) | DE757405C (fr) |
FR (1) | FR831368A (fr) |
GB (1) | GB487880A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1217464B (de) * | 1962-03-26 | 1966-05-26 | Johann Stegmueller | Schaltungsanordnung zur Kompensation einer von einer Amplitudenmodulation herruehrenden Stoerspannung in der Ausgangsspannung eines Demodulators fuer frequenzmodulierte,elektrische Hochfrequenzschwingungen |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2607889A (en) * | 1945-06-23 | 1952-08-19 | Emi Ltd | Radio receiver |
US2498954A (en) * | 1946-05-07 | 1950-02-28 | Panoramic Radio Corp | Panoramic receiver with means for modifying signal pulses applied to indicators |
GB0103871D0 (en) | 2001-02-16 | 2001-04-04 | Unilever Plc | Bleaching composition of enhanced stability and a process for making such a composition |
-
1936
- 1936-12-31 GB GB35888/36A patent/GB487880A/en not_active Expired
-
1937
- 1937-11-30 US US177191A patent/US2217294A/en not_active Expired - Lifetime
- 1937-12-28 FR FR831368D patent/FR831368A/fr not_active Expired
- 1937-12-30 DE DEM140246D patent/DE757405C/de not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1217464B (de) * | 1962-03-26 | 1966-05-26 | Johann Stegmueller | Schaltungsanordnung zur Kompensation einer von einer Amplitudenmodulation herruehrenden Stoerspannung in der Ausgangsspannung eines Demodulators fuer frequenzmodulierte,elektrische Hochfrequenzschwingungen |
Also Published As
Publication number | Publication date |
---|---|
US2217294A (en) | 1940-10-08 |
DE757405C (de) | 1952-03-27 |
FR831368A (fr) | 1938-09-01 |
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