FR1312729A - Capsule de microphone à charbon - Google Patents

Capsule de microphone à charbon

Info

Publication number
FR1312729A
FR1312729A FR885210A FR885210A FR1312729A FR 1312729 A FR1312729 A FR 1312729A FR 885210 A FR885210 A FR 885210A FR 885210 A FR885210 A FR 885210A FR 1312729 A FR1312729 A FR 1312729A
Authority
FR
France
Prior art keywords
charcoal
microphone capsule
capsule
microphone
charcoal microphone
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
FR885210A
Other languages
English (en)
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens 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
Priority claimed from DES72788A external-priority patent/DE1161314B/de
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Priority to FR885210A priority Critical patent/FR1312729A/fr
Application granted granted Critical
Publication of FR1312729A publication Critical patent/FR1312729A/fr
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
    • 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)
FR885210A 1961-03-02 1962-01-18 Capsule de microphone à charbon Expired FR1312729A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR885210A FR1312729A (fr) 1961-03-02 1962-01-18 Capsule de microphone à charbon

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES72788A DE1161314B (de) 1961-03-02 1961-03-02 Kohlemikrofonkapsel mit feuchtigkeitsgeschuetzter Kohlekammer
FR885210A FR1312729A (fr) 1961-03-02 1962-01-18 Capsule de microphone à charbon

Publications (1)

Publication Number Publication Date
FR1312729A true FR1312729A (fr) 1962-12-21

Family

ID=25996356

Family Applications (1)

Application Number Title Priority Date Filing Date
FR885210A Expired FR1312729A (fr) 1961-03-02 1962-01-18 Capsule de microphone à charbon

Country Status (1)

Country Link
FR (1) FR1312729A (fr)

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