JPS5255517A - Electrode for carbon transmitter - Google Patents

Electrode for carbon transmitter

Info

Publication number
JPS5255517A
JPS5255517A JP13032475A JP13032475A JPS5255517A JP S5255517 A JPS5255517 A JP S5255517A JP 13032475 A JP13032475 A JP 13032475A JP 13032475 A JP13032475 A JP 13032475A JP S5255517 A JPS5255517 A JP S5255517A
Authority
JP
Japan
Prior art keywords
electrode
carbon transmitter
carbon
transmitter
substrate
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.)
Pending
Application number
JP13032475A
Other languages
Japanese (ja)
Inventor
Koji Suda
Tetsusuke Nagashima
Kunioki Oyagi
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.)
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
Original Assignee
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
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 Iwatsu Electric Co Ltd, Iwasaki Tsushinki KK filed Critical Iwatsu Electric Co Ltd
Priority to JP13032475A priority Critical patent/JPS5255517A/en
Publication of JPS5255517A publication Critical patent/JPS5255517A/en
Priority to US05/886,156 priority patent/US4205206A/en
Pending 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

Abstract

PURPOSE:To obtain a logn life electrode for carbon transmitter by constructing it with a substrate consisting of conductive material and a conductive carbon film applying on the substrate.
JP13032475A 1975-10-31 1975-10-31 Electrode for carbon transmitter Pending JPS5255517A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP13032475A JPS5255517A (en) 1975-10-31 1975-10-31 Electrode for carbon transmitter
US05/886,156 US4205206A (en) 1975-10-31 1978-03-13 Carbon granule microphone with molded resin-conductive carbon electrode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13032475A JPS5255517A (en) 1975-10-31 1975-10-31 Electrode for carbon transmitter

Publications (1)

Publication Number Publication Date
JPS5255517A true JPS5255517A (en) 1977-05-07

Family

ID=15031607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13032475A Pending JPS5255517A (en) 1975-10-31 1975-10-31 Electrode for carbon transmitter

Country Status (1)

Country Link
JP (1) JPS5255517A (en)

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