GB496912A - Improvements in adjustable inductance - Google Patents
Improvements in adjustable inductanceInfo
- Publication number
- GB496912A GB496912A GB7297/38A GB729738A GB496912A GB 496912 A GB496912 A GB 496912A GB 7297/38 A GB7297/38 A GB 7297/38A GB 729738 A GB729738 A GB 729738A GB 496912 A GB496912 A GB 496912A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windings
- inductance
- sections
- march
- winding
- 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
- 238000004804 winding Methods 0.000 abstract 8
- 238000010276 construction Methods 0.000 abstract 1
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
- H01F21/005—Inductances without magnetic core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US134069A US2173084A (en) | 1937-03-31 | 1937-03-31 | Adjustable inductance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB496912A true GB496912A (en) | 1938-12-08 |
Family
ID=22461636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7297/38A Expired GB496912A (en) | 1937-03-31 | 1938-03-08 | Improvements in adjustable inductance |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2173084A (en:Method) |
| BE (1) | BE427257A (en:Method) |
| GB (1) | GB496912A (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ306038B6 (cs) * | 2015-05-05 | 2016-07-07 | Univerzita Hradec Králové | Cívka |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2531231A (en) * | 1945-12-04 | 1950-11-21 | Rca Corp | Variable permeability tuning device |
| US4128818A (en) * | 1977-04-13 | 1978-12-05 | Pyrohm, Inc. | Electrical frequency responsive structure |
| US4255728A (en) * | 1978-08-24 | 1981-03-10 | Doty Archibald C Jun | Parallel resonant electric circuit |
| TWI297898B (en) * | 2006-03-17 | 2008-06-11 | Hon Hai Prec Ind Co Ltd | Transformer with adjustable leakage inductance and discharge lamp driving device using the same |
-
1937
- 1937-03-31 US US134069A patent/US2173084A/en not_active Expired - Lifetime
-
1938
- 1938-03-08 GB GB7297/38A patent/GB496912A/en not_active Expired
- 1938-03-30 BE BE427257A patent/BE427257A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ306038B6 (cs) * | 2015-05-05 | 2016-07-07 | Univerzita Hradec Králové | Cívka |
Also Published As
| Publication number | Publication date |
|---|---|
| US2173084A (en) | 1939-09-19 |
| BE427257A (en:Method) | 1938-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2459210A (en) | Variable differential transformer | |
| GB496912A (en) | Improvements in adjustable inductance | |
| CN203733601U (zh) | 双磁心式可调电抗器 | |
| DE426944C (de) | Einrichtung zur Abstimmung von Antennen mit einem ferromagnetischen Kern | |
| GB502296A (en) | Improvements in or relating to high frequency inductance coils | |
| US2458071A (en) | Adjustable inductor | |
| US2447002A (en) | Permeability tuned intermediate frequency transformer | |
| GB382076A (en) | Improvements in electrical circuit-tuning devices | |
| GB450286A (en) | Improvements relating to coils for use in high-frequency electrical apparatus | |
| SU72514A1 (ru) | Устройство дл плавного регулировани магнитной св зи высокочастотных контуров | |
| GB438791A (en) | Improvements in and relating to moving coil voltage regulators | |
| US2973491A (en) | Attenuator | |
| US1762008A (en) | Regulating transformer | |
| GB691333A (en) | Improvements in or relating to high-frequency band-pass filters | |
| GB252285A (en) | Improvements in and relating to the tuning of wireless circuits and apparatus therefor | |
| GB425468A (en) | High-frequency coil with adjustable inductance value | |
| GB628998A (en) | Improvements in or relating to inductive coupling devices for radio receivers | |
| GB619996A (en) | Improvements in or relating to coils for electric circuits | |
| GB460503A (en) | High frequency coil | |
| GB609708A (en) | Improvements in and relating to ultra high frequency inductors | |
| GB580782A (en) | Improvements in radio frequency transformers | |
| US1903075A (en) | Electrical transformer | |
| GB592031A (en) | Electric coupling circuit | |
| GB515305A (en) | Improvements in coupling devices for high-frequency electric circuits | |
| GB429826A (en) | Improvements in or relating to variable inductances suitable for the tuned high frequency circuits of wireless receiving apparatus |