CH245420A - Electrodynamic speaker. - Google Patents

Electrodynamic speaker.

Info

Publication number
CH245420A
CH245420A CH245420DA CH245420A CH 245420 A CH245420 A CH 245420A CH 245420D A CH245420D A CH 245420DA CH 245420 A CH245420 A CH 245420A
Authority
CH
Switzerland
Prior art keywords
electrodynamic speaker
electrodynamic
speaker
Prior art date
Application number
Other languages
French (fr)
Inventor
Cesati Mario
Original Assignee
Cesati Mario
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 Cesati Mario filed Critical Cesati Mario
Publication of CH245420A publication Critical patent/CH245420A/en

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/043—Short circuited voice coils driven by induction
CH245420D 1942-02-05 1943-02-09 Electrodynamic speaker. CH245420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT892396X 1942-02-05

Publications (1)

Publication Number Publication Date
CH245420A true CH245420A (en) 1946-11-15

Family

ID=11331453

Family Applications (1)

Application Number Title Priority Date Filing Date
CH245420D CH245420A (en) 1942-02-05 1943-02-09 Electrodynamic speaker.

Country Status (2)

Country Link
CH (1) CH245420A (en)
FR (1) FR892396A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE853298C (en) * 1950-08-01 1952-10-23 Bernhard Philberth Feedback dynamic loudspeaker
DE1139575B (en) * 1957-08-19 1962-11-15 Heinrich Doelz Dipl Ing Dynamic electromechanical converter
EP0162721A2 (en) * 1984-05-25 1985-11-27 Ampex Corporation Linear motor protected from dust and particles
EP1094686B1 (en) * 1999-10-19 2003-05-14 Sagem SA Mobile telephone loudspeaker

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5936689U (en) * 1982-08-31 1984-03-07 パイオニア株式会社 speaker device
ATE112126T1 (en) * 1988-07-15 1994-10-15 Studer Revox Ag ELECTRODYNAMIC SPEAKER.
WO1994016536A1 (en) * 1993-01-06 1994-07-21 Velodyne Acoustics, Inc. Speaker containing dual coil
IT1297378B1 (en) * 1997-12-05 1999-09-01 B & C Speakers S P A ELECTRODYNAMIC ACOUSTIC TRANSDUCER WITH LOW INDUCTANCE EQUIVALENT OF THE MOBILE CREW

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE853298C (en) * 1950-08-01 1952-10-23 Bernhard Philberth Feedback dynamic loudspeaker
DE1139575B (en) * 1957-08-19 1962-11-15 Heinrich Doelz Dipl Ing Dynamic electromechanical converter
EP0162721A2 (en) * 1984-05-25 1985-11-27 Ampex Corporation Linear motor protected from dust and particles
EP0162721A3 (en) * 1984-05-25 1987-01-14 Ampex Corporation Particle free linear motor
EP1094686B1 (en) * 1999-10-19 2003-05-14 Sagem SA Mobile telephone loudspeaker

Also Published As

Publication number Publication date
FR892396A (en) 1944-04-05

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