GB352791A - Improvements in wireless receiving sets - Google Patents
Improvements in wireless receiving setsInfo
- Publication number
- GB352791A GB352791A GB25849/30A GB2584930A GB352791A GB 352791 A GB352791 A GB 352791A GB 25849/30 A GB25849/30 A GB 25849/30A GB 2584930 A GB2584930 A GB 2584930A GB 352791 A GB352791 A GB 352791A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condenser
- input
- aerial
- tuned
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
352,791. Wireless receiving apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Aug. 29, 1930, No. 25849. Convention date, Sept. 18, 1929. [Class 40 (v).] Relates to means for simplifying the tuning of a receiver where the aerial inp u t comprises a small series condenser 6 for selective purposes, and also a tuned rejector circuit 9, 10. A switch 13 is arranged so that in the open position the aerial current flows as usual through the rejector circuit 9, 10, through the small series condenser 6, and then through the tuned input 7, 8 to the point 12, which is earthed. In the closed position, however, the two tuned circuits 9, 10 and 7, 8 are coupled through a small condenser 5 in order to increase the selectivity. If the condenser 6 is then assumed to be connected in parallel with the condenser 8, the adjustment of the latter practically determines the tuning of the input as a whole. The arrangement is advantageous if the circuit 7, 8 is followed by other stages with ganged tuning control. A frame aerial may be connected in series with the condenser 5 across the input 7, 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL352791X | 1929-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB352791A true GB352791A (en) | 1931-07-16 |
Family
ID=19785103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25849/30A Expired GB352791A (en) | 1929-09-18 | 1930-08-29 | Improvements in wireless receiving sets |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE574810C (en) |
| FR (1) | FR701506A (en) |
| GB (1) | GB352791A (en) |
| NL (1) | NL29881C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE756080C (en) * | 1937-05-20 | 1954-07-26 | Lorenz C Ag | Receiving device for the selection of a wire radio transmission from several transmissions given over the same network with different carrier frequencies |
-
0
- NL NL29881D patent/NL29881C/xx active
-
1930
- 1930-08-29 GB GB25849/30A patent/GB352791A/en not_active Expired
- 1930-08-31 DE DE1930574810D patent/DE574810C/en not_active Expired
- 1930-09-01 FR FR701506D patent/FR701506A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR701506A (en) | 1931-03-17 |
| NL29881C (en) | |
| DE574810C (en) | 1933-04-20 |
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