FR570761A - New variometric device of tuning apparatus applicable to telegraphy or wireless telephony - Google Patents

New variometric device of tuning apparatus applicable to telegraphy or wireless telephony

Info

Publication number
FR570761A
FR570761A FR570761DA FR570761A FR 570761 A FR570761 A FR 570761A FR 570761D A FR570761D A FR 570761DA FR 570761 A FR570761 A FR 570761A
Authority
FR
France
Prior art keywords
variometric
telegraphy
new
wireless telephony
tuning apparatus
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)
Inventor
Raymond Dehay
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 filed Critical
Application granted granted Critical
Publication of FR570761A publication Critical patent/FR570761A/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)
FR570761D 1923-09-03 1923-09-03 New variometric device of tuning apparatus applicable to telegraphy or wireless telephony Expired FR570761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR570761T 1923-09-03

Publications (1)

Publication Number Publication Date
FR570761A true FR570761A (en) 1924-05-07

Family

ID=8950097

Family Applications (1)

Application Number Title Priority Date Filing Date
FR570761D Expired FR570761A (en) 1923-09-03 1923-09-03 New variometric device of tuning apparatus applicable to telegraphy or wireless telephony

Country Status (1)

Country Link
FR (1) FR570761A (en)

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