GB389839A - Improvements in or relating to sound translating devices - Google Patents

Improvements in or relating to sound translating devices

Info

Publication number
GB389839A
GB389839A GB26685/31A GB2668531A GB389839A GB 389839 A GB389839 A GB 389839A GB 26685/31 A GB26685/31 A GB 26685/31A GB 2668531 A GB2668531 A GB 2668531A GB 389839 A GB389839 A GB 389839A
Authority
GB
United Kingdom
Prior art keywords
coil
diaphragm
frequency
impedance
loud
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
GB26685/31A
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Publication of GB389839A publication Critical patent/GB389839A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB26685/31A 1930-10-04 1931-09-24 Improvements in or relating to sound translating devices Expired GB389839A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US389839XA 1930-10-04 1930-10-04

Publications (1)

Publication Number Publication Date
GB389839A true GB389839A (en) 1933-03-24

Family

ID=21903028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26685/31A Expired GB389839A (en) 1930-10-04 1931-09-24 Improvements in or relating to sound translating devices

Country Status (2)

Country Link
BE (1) BE383113A (https=)
GB (1) GB389839A (https=)

Also Published As

Publication number Publication date
BE383113A (https=)

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