CH202672A - Kohlekörnermikrophon nach dem Querstromprinzip. - Google Patents

Kohlekörnermikrophon nach dem Querstromprinzip.

Info

Publication number
CH202672A
CH202672A CH202672DA CH202672A CH 202672 A CH202672 A CH 202672A CH 202672D A CH202672D A CH 202672DA CH 202672 A CH202672 A CH 202672A
Authority
CH
Switzerland
Prior art keywords
cross
coal grain
flow principle
microphone based
grain microphone
Prior art date
Application number
Other languages
German (de)
English (en)
Inventor
Haftung Neue Tel Beschraenkter
Original Assignee
Neue Telefon Gmbh
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 Neue Telefon Gmbh filed Critical Neue Telefon Gmbh
Publication of CH202672A publication Critical patent/CH202672A/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
    • H04R21/026—Microphones in which the sound is perpendicular to the current crossing the transducer material

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
CH202672D 1935-09-12 1937-09-13 Kohlekörnermikrophon nach dem Querstromprinzip. CH202672A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1935S0119731 DE702071C (de) 1935-09-12 1935-09-12 Kohlemikrofon nach dem Querstromprinzip mit konzentrisch angeordneten Elektroden

Publications (1)

Publication Number Publication Date
CH202672A true CH202672A (de) 1939-01-31

Family

ID=7534980

Family Applications (1)

Application Number Title Priority Date Filing Date
CH202672D CH202672A (de) 1935-09-12 1937-09-13 Kohlekörnermikrophon nach dem Querstromprinzip.

Country Status (3)

Country Link
CH (1) CH202672A (xx)
DE (1) DE702071C (xx)
NL (1) NL54831C (xx)

Also Published As

Publication number Publication date
DE702071C (de) 1941-01-29
NL54831C (xx)

Similar Documents

Publication Publication Date Title
CH197007A (fr) Projectile empenné.
CH202672A (de) Kohlekörnermikrophon nach dem Querstromprinzip.
CH160245A (fr) Pompe.
SU14443A1 (ru) Подшипниковый сплав со свинцовой основой
SU48565A1 (ru) Конденсаторный микрофон
GR6310B (el) Οβιδοβολον διαμετρηματος των πεντε εκατοστων.
CH204264A (de) Schusswaffe.
DK52917C (da) Smørkærne.
CH189394A (de) Plansichter.
CH185595A (de) Kornschieber.
ES2010Y (es) Criba, cedazo o tamiz metálico.
DK46415C (da) Tærskeværk.
FI18648A (fi) Spridningsapparat, för att i en förbränningsugn inspruta en vätska, t.ex. avfallslut från cellulosaindustrin
FI16469A (fi) Sätt att framställa elastiska massor, folier, lacköverdrag o.s.v.
FI19253A (fi) Anordning för automatisk avstämningskorrigering av radiomottagare e.d.
AT132070B (de) Dreschmaschine.
GR3233B (el) Αντλια.
DK47053C (da) Flyveraket.
DK48186C (da) Haardmetallegering.
ES1080Y (es) Estuche azucarero metálico anunciador.
FI17709A (fi) Sätt att förfärdiga osprickbara ytor, såsom tak, golv, väggar, trottoarer, vägar m.m.
DK57061C (da) Projektil.
DK57802C (da) Projektil.
DK55518C (da) Projektil.
ES664Y (es) Sommier metálico.