DE223761C - - Google Patents

Info

Publication number
DE223761C
DE223761C DENDAT223761D DE223761DA DE223761C DE 223761 C DE223761 C DE 223761C DE NDAT223761 D DENDAT223761 D DE NDAT223761D DE 223761D A DE223761D A DE 223761DA DE 223761 C DE223761 C DE 223761C
Authority
DE
Germany
Prior art keywords
plate
membrane
sound box
board
cavity
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.)
Active
Application number
DENDAT223761D
Other languages
German (de)
English (en)
Publication of DE223761C publication Critical patent/DE223761C/de
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Telephone Set Structure (AREA)
DENDAT223761D Active DE223761C (https=)

Publications (1)

Publication Number Publication Date
DE223761C true DE223761C (https=)

Family

ID=484553

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT223761D Active DE223761C (https=)

Country Status (1)

Country Link
DE (1) DE223761C (https=)

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