GB628344A - Improvements in broadcast radio receivers incorporating frame aerial systems - Google Patents
Improvements in broadcast radio receivers incorporating frame aerial systemsInfo
- Publication number
- GB628344A GB628344A GB1827447A GB1827447A GB628344A GB 628344 A GB628344 A GB 628344A GB 1827447 A GB1827447 A GB 1827447A GB 1827447 A GB1827447 A GB 1827447A GB 628344 A GB628344 A GB 628344A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frame aerial
- condenser
- frequency
- coil
- parallel
- 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
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
- H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
- H03H2/008—Receiver or amplifier input circuits
Landscapes
- Circuits Of Receivers In General (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
628,344. Radio receiving sets. GENERAL ELECTRIC CO., Ltd., and BELL, A. E. July 10, 1947, No. 18274. [Class 40 (v)] In a radio receiver of the type designed to work on at least two frequency ranges, and incorporating a frame aerial system, on the higher frequency range, the frame aerial can be tuned to resonance by a tuning condenser, and on the lower frequency range the frame aerial is shunted by a second condenser, to form a circuit resonant at a frequency higher than the maximum frequency of this range, and is connected in series with a loading coil to form a circuit tunable to resonance by the tuning condenser throughout the low-frequency range. As shown, when the switch 3 is on the medium wave position 4 the coil 8 is short-circuited and the frame aerial 1 and tuning condenser 5 are connected in parallel across the input of the receiver. On the long wave position 7 the coil 8 is connected in series with the parallel combination of the frame aerial 1 and condenser 10, this circuit in parallel with tuning condenser 5 being connected across the input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1827447A GB628344A (en) | 1947-07-10 | 1947-07-10 | Improvements in broadcast radio receivers incorporating frame aerial systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1827447A GB628344A (en) | 1947-07-10 | 1947-07-10 | Improvements in broadcast radio receivers incorporating frame aerial systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB628344A true GB628344A (en) | 1949-08-26 |
Family
ID=10109640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1827447A Expired GB628344A (en) | 1947-07-10 | 1947-07-10 | Improvements in broadcast radio receivers incorporating frame aerial systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB628344A (en) |
-
1947
- 1947-07-10 GB GB1827447A patent/GB628344A/en not_active Expired
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