GB505528A - Automatic tuning arrangement in radio receivers of superheterodyne type - Google Patents
Automatic tuning arrangement in radio receivers of superheterodyne typeInfo
- Publication number
- GB505528A GB505528A GB18139/38A GB1813938A GB505528A GB 505528 A GB505528 A GB 505528A GB 18139/38 A GB18139/38 A GB 18139/38A GB 1813938 A GB1813938 A GB 1813938A GB 505528 A GB505528 A GB 505528A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- june
- radio receivers
- automatic tuning
- condenser
- 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
- 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
Landscapes
- Circuits Of Receivers In General (AREA)
- Superheterodyne Receivers (AREA)
Abstract
505,528. Antomatic tuning correction. COLE, Ltd., E. K. June 18, 1938, No. 18139. Convention date, June 18, 1937. [Class 40 (v)] The hexode frequency changer 1 of a superheterodyne receiver functions also as an automatic frequency control valve by virtue of a connection over condenser 12 between the main anode 10 and the tuned circuit 4, 5, of the oscillator portion of the valve. The valve 1 thus acts as a reactive load on the circuit 4, 5, variable by varying the mutual conductance which is effected by applying bias voltage v from an error detector to the outer grid 13. The condenser 12 may be connected to the oscillator anode side of the reaction coil 7 as shown by the dotted line. Reference has been directed by the Comptroller to Specification 497,798.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE505528X | 1937-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB505528A true GB505528A (en) | 1939-05-12 |
Family
ID=20310832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18139/38A Expired GB505528A (en) | 1937-06-18 | 1938-06-18 | Automatic tuning arrangement in radio receivers of superheterodyne type |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB505528A (en) |
-
1938
- 1938-06-18 GB GB18139/38A patent/GB505528A/en not_active Expired
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