DE2533890A1 - Elektromechanischer tonwandler und verstaerker - Google Patents

Elektromechanischer tonwandler und verstaerker

Info

Publication number
DE2533890A1
DE2533890A1 DE19752533890 DE2533890A DE2533890A1 DE 2533890 A1 DE2533890 A1 DE 2533890A1 DE 19752533890 DE19752533890 DE 19752533890 DE 2533890 A DE2533890 A DE 2533890A DE 2533890 A1 DE2533890 A1 DE 2533890A1
Authority
DE
Germany
Prior art keywords
electrically conductive
housing
amplifier according
converter
electromechanical
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
DE19752533890
Other languages
German (de)
English (en)
Inventor
Jerry O'brien
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.)
BRIEN JERRY O
Original Assignee
BRIEN JERRY O
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 BRIEN JERRY O filed Critical BRIEN JERRY O
Publication of DE2533890A1 publication Critical patent/DE2533890A1/de
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
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
DE19752533890 1974-10-07 1975-07-29 Elektromechanischer tonwandler und verstaerker Pending DE2533890A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US512190A US3909558A (en) 1974-10-07 1974-10-07 Electromechanical amplifier sound transducer with combined power source

Publications (1)

Publication Number Publication Date
DE2533890A1 true DE2533890A1 (de) 1976-04-08

Family

ID=24038069

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752533890 Pending DE2533890A1 (de) 1974-10-07 1975-07-29 Elektromechanischer tonwandler und verstaerker

Country Status (5)

Country Link
US (1) US3909558A (OSRAM)
JP (1) JPS5147416A (OSRAM)
DE (1) DE2533890A1 (OSRAM)
FR (1) FR2287822A1 (OSRAM)
IT (1) IT1051133B (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3968332A (en) * 1975-06-05 1976-07-06 Lawrence Peska Associates, Inc. Toy carbon microphone
USD246369S (en) * 1975-10-08 1977-11-15 O'brien Deceased Gerard J Tap transducer intercom

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US298286A (en) * 1884-05-06 Telephonic transmitter
DE44937C (de) * V. M. BERTHOLD in Cambridgeport, Massach.,V. St. A Neuerung an Batterie-Telephonen
US3136854A (en) * 1962-04-16 1964-06-09 Clark A Willick Underwater telephone

Also Published As

Publication number Publication date
JPS5147416A (OSRAM) 1976-04-23
FR2287822A1 (fr) 1976-05-07
US3909558A (en) 1975-09-30
AU8256175A (en) 1977-01-06
FR2287822B1 (OSRAM) 1979-05-11
IT1051133B (it) 1981-04-21

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