GB476701A - Improvements in and relating to radio communication systems - Google Patents
Improvements in and relating to radio communication systemsInfo
- Publication number
- GB476701A GB476701A GB1952836A GB1952836A GB476701A GB 476701 A GB476701 A GB 476701A GB 1952836 A GB1952836 A GB 1952836A GB 1952836 A GB1952836 A GB 1952836A GB 476701 A GB476701 A GB 476701A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elements
- conductor
- terminals
- supporting member
- relating
- 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
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/02—Lecher resonators
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
476,701. Inductances; transformers. TELEPHONE MANUFACTURING CO., Ltd., and PADDLE, L. H. July 14, 1936, No. 19528. [Class 38 (ii)] A variable inductance for use for example in short wave wireless receivers comprises a U-shaped conductor formed of fixed elements 15, 16 extending from terminals which may be valve holders 35, 36 and elements 19, 20, 21 connecting the other ends of the fixed elements and adapted to be swung about an axis 17, 18 for tuning. Adjustment of wavelength range may be effected by movement of the element 19, e.g. telescopically, with respect to the members 20, 21. The inductance may be coupled to an aerial circuit by a further U- shaped conductor 22 lying in a plane parallel to and below the elements 20, 21, the terminals 34 of the conductor 22 being mounted on its supporting member 13. The conductor 22 may be slidably mounted on its supporting member so that its coupling with the variable inductance element may be varied. The arrangement may be applied to wireless receivers of the type described in Specification 450,150, [Group XL].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1952836A GB476701A (en) | 1936-07-14 | 1936-07-14 | Improvements in and relating to radio communication systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1952836A GB476701A (en) | 1936-07-14 | 1936-07-14 | Improvements in and relating to radio communication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB476701A true GB476701A (en) | 1937-12-14 |
Family
ID=10130891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1952836A Expired GB476701A (en) | 1936-07-14 | 1936-07-14 | Improvements in and relating to radio communication systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB476701A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2705778A (en) * | 1951-06-08 | 1955-04-05 | Hazeltine Research Inc | High-frequency wave-signal tuning device |
| US2757343A (en) * | 1950-11-25 | 1956-07-31 | Philco Corp | Coupling network for television tuners |
| US2846613A (en) * | 1953-10-23 | 1958-08-05 | Bell Telephone Labor Inc | Bifilar helix coupling connections |
-
1936
- 1936-07-14 GB GB1952836A patent/GB476701A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2757343A (en) * | 1950-11-25 | 1956-07-31 | Philco Corp | Coupling network for television tuners |
| US2705778A (en) * | 1951-06-08 | 1955-04-05 | Hazeltine Research Inc | High-frequency wave-signal tuning device |
| US2846613A (en) * | 1953-10-23 | 1958-08-05 | Bell Telephone Labor Inc | Bifilar helix coupling connections |
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