FR822569A - Combined driver and transformer electrodynamic loudspeaker - Google Patents

Combined driver and transformer electrodynamic loudspeaker

Info

Publication number
FR822569A
FR822569A FR822569DA FR822569A FR 822569 A FR822569 A FR 822569A FR 822569D A FR822569D A FR 822569DA FR 822569 A FR822569 A FR 822569A
Authority
FR
France
Prior art keywords
transformer
electrodynamic loudspeaker
combined driver
driver
combined
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
Brami Joseph
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 FR822569A publication Critical patent/FR822569A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR822569D 1937-04-28 1936-09-10 Combined driver and transformer electrodynamic loudspeaker Expired FR822569A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR48418T 1937-04-28

Publications (1)

Publication Number Publication Date
FR822569A true FR822569A (en) 1938-01-04

Family

ID=8683761

Family Applications (2)

Application Number Title Priority Date Filing Date
FR822569D Expired FR822569A (en) 1937-04-28 1936-09-10 Combined driver and transformer electrodynamic loudspeaker
FR48418D Expired FR48418E (en) 1937-04-28 1937-04-28 Combined driver and transformer electrodynamic loudspeaker

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR48418D Expired FR48418E (en) 1937-04-28 1937-04-28 Combined driver and transformer electrodynamic loudspeaker

Country Status (3)

Country Link
BE (1) BE423343A (en)
FR (2) FR822569A (en)
GB (1) GB506421A (en)

Also Published As

Publication number Publication date
FR48418E (en) 1938-02-03
GB506421A (en) 1939-05-26
BE423343A (en)

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