FR938087A - Electro-acoustic transformer - Google Patents

Electro-acoustic transformer

Info

Publication number
FR938087A
FR938087A FR938087DA FR938087A FR 938087 A FR938087 A FR 938087A FR 938087D A FR938087D A FR 938087DA FR 938087 A FR938087 A FR 938087A
Authority
FR
France
Prior art keywords
electro
acoustic transformer
acoustic
transformer
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.)
Autophon AG
Original Assignee
Autophon AG
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 Autophon AG filed Critical Autophon AG
Application granted granted Critical
Publication of FR938087A publication Critical patent/FR938087A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR938087D 1946-01-19 1946-12-31 Electro-acoustic transformer Expired FR938087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH938087X 1946-01-19

Publications (1)

Publication Number Publication Date
FR938087A true FR938087A (en) 1948-09-03

Family

ID=4549268

Family Applications (1)

Application Number Title Priority Date Filing Date
FR938087D Expired FR938087A (en) 1946-01-19 1946-12-31 Electro-acoustic transformer

Country Status (2)

Country Link
CH (1) CH259866A (en)
FR (1) FR938087A (en)

Also Published As

Publication number Publication date
CH259866A (en) 1949-02-15

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