FR856170A - Improvements to tuning devices for high frequency circuits - Google Patents

Improvements to tuning devices for high frequency circuits

Info

Publication number
FR856170A
FR856170A FR856170DA FR856170A FR 856170 A FR856170 A FR 856170A FR 856170D A FR856170D A FR 856170DA FR 856170 A FR856170 A FR 856170A
Authority
FR
France
Prior art keywords
high frequency
frequency circuits
tuning devices
tuning
devices
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
Other languages
French (fr)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR856170A publication Critical patent/FR856170A/en
Expired legal-status Critical Current

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
    • H01F21/005—Inductances without magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR856170D 1938-06-15 1939-06-14 Improvements to tuning devices for high frequency circuits Expired FR856170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE856170X 1938-06-15

Publications (1)

Publication Number Publication Date
FR856170A true FR856170A (en) 1940-06-03

Family

ID=6789271

Family Applications (1)

Application Number Title Priority Date Filing Date
FR856170D Expired FR856170A (en) 1938-06-15 1939-06-14 Improvements to tuning devices for high frequency circuits

Country Status (1)

Country Link
FR (1) FR856170A (en)

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