GB448440A - Improvements in variable electrical inductances - Google Patents
Improvements in variable electrical inductancesInfo
- Publication number
- GB448440A GB448440A GB3506934A GB3506934A GB448440A GB 448440 A GB448440 A GB 448440A GB 3506934 A GB3506934 A GB 3506934A GB 3506934 A GB3506934 A GB 3506934A GB 448440 A GB448440 A GB 448440A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- parts
- general electric
- inductances
- rectangular
- 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
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
- H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
448,440. Inductances. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and SMITH, C. G., c/o General Electric Co., Ltd., Wembley, Middlesex. Dec. 6, 1934, No. 35069. [Class 37] In a variable inductance for permeability tuning having separate coils L, S for long and short waves, the coils are spaced apart on a tubular former E of non-magnetic material, which is movable longitudinally in a gap between parts A, B of the core. The inner part B of the core is provided with insulating extensions C, D on each side. The cross-section of the parts A, B may be circular or rectangular ; in the latter case, the outer member A may be provided on the larger sides only of the rectangular section of B.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3506934A GB448440A (en) | 1934-12-06 | 1934-12-06 | Improvements in variable electrical inductances |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3506934A GB448440A (en) | 1934-12-06 | 1934-12-06 | Improvements in variable electrical inductances |
Publications (1)
Publication Number | Publication Date |
---|---|
GB448440A true GB448440A (en) | 1936-06-08 |
Family
ID=10373424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3506934A Expired GB448440A (en) | 1934-12-06 | 1934-12-06 | Improvements in variable electrical inductances |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB448440A (en) |
-
1934
- 1934-12-06 GB GB3506934A patent/GB448440A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB448440A (en) | Improvements in variable electrical inductances | |
GB436911A (en) | Improvements in variable inductances | |
GB1202569A (en) | Choke or transformer | |
GB424425A (en) | Improvements in high frequency inductance coils | |
GB441751A (en) | Improvements in and relating to choke coils | |
GB731500A (en) | Improvements in and relating to magnetic cores | |
GB456347A (en) | Improvements in electric inductances | |
GB417378A (en) | Improvements in inductance coils | |
GB429800A (en) | Improvements in coil assemblies for wireless and like purposes | |
GB243431A (en) | Improvements in and connected with telephonic receivers | |
GB447386A (en) | Improvements in electric transformers of small output | |
GB555732A (en) | Improvements in or relating to variable permeability tuning systems for electric circuits | |
GB662711A (en) | Improvements in or relating to bobbins for transformers and chokes having laminated cores | |
GB447750A (en) | Improvements relating to loudspeakers | |
GB542898A (en) | Electromagnetic coils | |
GB1021360A (en) | An electric choke | |
GB311722A (en) | Improvements in and relating to electro magnetic instruments for converting oscillating currents into sound and vice versa | |
GB596556A (en) | Improvements relating to laminated magnetic cores | |
GB555960A (en) | An improvement in or relating to variable reactance or choke coils | |
GB265339A (en) | Improvements to telephone receivers | |
GB616826A (en) | Improvements in or relating to electrical voltage regulators | |
GB249624A (en) | Improvements in or relating to electro-magnetic sound reproducers | |
GB1042077A (en) | Inductor | |
GB357049A (en) | Improvements in or relating to electric impulse transformers | |
GB277876A (en) | Improvements in binocular or astatic inductances and transformers |