CH250533A - Körnermikrophon. - Google Patents

Körnermikrophon.

Info

Publication number
CH250533A
CH250533A CH250533DA CH250533A CH 250533 A CH250533 A CH 250533A CH 250533D A CH250533D A CH 250533DA CH 250533 A CH250533 A CH 250533A
Authority
CH
Switzerland
Prior art keywords
microphone
grain
grain microphone
Prior art date
Application number
Other languages
English (en)
Inventor
Ag Standard Telephon Und Radio
Original Assignee
Standard Telephon & Radio 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
Application filed by Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH250533A publication Critical patent/CH250533A/de

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)
  • Details Of Audible-Bandwidth Transducers (AREA)
CH250533D 1943-10-29 1945-03-17 Körnermikrophon. CH250533A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL613552X 1943-10-29

Publications (1)

Publication Number Publication Date
CH250533A true CH250533A (de) 1947-08-31

Family

ID=19788177

Family Applications (1)

Application Number Title Priority Date Filing Date
CH250533D CH250533A (de) 1943-10-29 1945-03-17 Körnermikrophon.

Country Status (3)

Country Link
CH (1) CH250533A (de)
FR (1) FR907524A (de)
GB (1) GB613552A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976947C (de) * 1952-06-25 1964-09-17 Standard Elek K Lorenz Ag Federnde Einspannung der Membran einer Sprech- oder Hoerkapsel
DE1061825B (de) * 1954-02-26 1959-07-23 Hans Widmaier Kohlegriessmikrophon-Sprechkapsel

Also Published As

Publication number Publication date
GB613552A (en) 1948-11-30
FR907524A (fr) 1946-03-14

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