DE227745C - - Google Patents

Info

Publication number
DE227745C
DE227745C DENDAT227745D DE227745DA DE227745C DE 227745 C DE227745 C DE 227745C DE NDAT227745 D DENDAT227745 D DE NDAT227745D DE 227745D A DE227745D A DE 227745DA DE 227745 C DE227745 C DE 227745C
Authority
DE
Germany
Prior art keywords
membrane
sound
horn
sound waves
cap
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
DENDAT227745D
Other languages
German (de)
English (en)
Publication of DE227745C publication Critical patent/DE227745C/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/021—Microphones with granular resistance material

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DENDAT227745D Active DE227745C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE227745C true DE227745C (enrdf_load_stackoverflow)

Family

ID=488181

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT227745D Active DE227745C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE227745C (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
DE3211072C3 (de) Elektret-Richtmikrofon
DE3511792C2 (enrdf_load_stackoverflow)
DE2939479C2 (enrdf_load_stackoverflow)
DE3525724C2 (enrdf_load_stackoverflow)
DE3505390C2 (de) In-dem-Ohr-Hörgerät
DE1134713B (de) Elektronischer Hoerapparat
DE3719830A1 (de) Im-ohr-hoergeraet
DE2558881C2 (de) Kondensatormikrophon
DE2906497C2 (enrdf_load_stackoverflow)
DE227745C (enrdf_load_stackoverflow)
DE513878C (de) Hoervorrichtung
CH591752A5 (enrdf_load_stackoverflow)
DE3616773A1 (de) Hoergeraet
EP1762117A1 (de) Kondensatormikrofon
DE69100747T2 (de) Elektronische Zündvorrichtung für Gerät mit gasförmigem Brennstoff, insbesondere für Gasfeuerzeuge.
DE3425211C1 (de) Hoergeraet
DE140614C (enrdf_load_stackoverflow)
DE1916719C3 (de) Elektroakustischer Wandler
DE29713202U1 (de) Montagegehäuse für elektroakustischen Wandler
DE78804C (de) Mikrophon
DE942517C (de) Kohlemikrofon mit einer festen und einer beweglichen Elektrode mit Nebenelektrode
DE245049C (enrdf_load_stackoverflow)
DE102022207352A1 (de) Hörgerät
DE135731C (enrdf_load_stackoverflow)
AT98881B (de) Schalldose, bei der Druckluft durch gegeneinander bewegliche Gitter geführt wird.