GB493213A - Improvements in or relating to inductances having adjustable high frequency iron core - Google Patents

Improvements in or relating to inductances having adjustable high frequency iron core

Info

Publication number
GB493213A
GB493213A GB1210337A GB1210337A GB493213A GB 493213 A GB493213 A GB 493213A GB 1210337 A GB1210337 A GB 1210337A GB 1210337 A GB1210337 A GB 1210337A GB 493213 A GB493213 A GB 493213A
Authority
GB
United Kingdom
Prior art keywords
inductances
relating
high frequency
iron core
adjustable high
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
Application number
GB1210337A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1210337A priority Critical patent/GB493213A/en
Publication of GB493213A publication Critical patent/GB493213A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

493,213. Inductances. MICHAELIS, E., and FRIEDLAENDER, E. April 28, 1937, No. 12103. [Class 38 (ii)] A variable highfrequency inductance has a magnetic dust core in two parts a, f, the one in the form of a cotton-reel having a conical bore and the other being correspondingly tapered and movable axially to vary the air gap m. Movement of the part f may be effected by rotating it on a screwed insulating spindle passing axially through the bore of the fixed part. Alternatively, a screwed actuating spindle g engaging a threaded hole in a fixed member may be provided. Specification 460,503 is referred to.
GB1210337A 1937-04-28 1937-04-28 Improvements in or relating to inductances having adjustable high frequency iron core Expired GB493213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1210337A GB493213A (en) 1937-04-28 1937-04-28 Improvements in or relating to inductances having adjustable high frequency iron core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1210337A GB493213A (en) 1937-04-28 1937-04-28 Improvements in or relating to inductances having adjustable high frequency iron core

Publications (1)

Publication Number Publication Date
GB493213A true GB493213A (en) 1938-10-05

Family

ID=9998435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1210337A Expired GB493213A (en) 1937-04-28 1937-04-28 Improvements in or relating to inductances having adjustable high frequency iron core

Country Status (1)

Country Link
GB (1) GB493213A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3254319A (en) * 1960-06-23 1966-05-31 Philips Corp Variable inductors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3254319A (en) * 1960-06-23 1966-05-31 Philips Corp Variable inductors

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