BE370722A - - Google Patents

Info

Publication number
BE370722A
BE370722A BE370722DA BE370722A BE 370722 A BE370722 A BE 370722A BE 370722D A BE370722D A BE 370722DA BE 370722 A BE370722 A BE 370722A
Authority
BE
Belgium
Application number
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.)
Publication of BE370722A publication Critical patent/BE370722A/xx

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
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0289—Transducers, loudspeakers, moving coil arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
BE370722D 1929-06-22 BE370722A (ja�@�@)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL351723X 1929-06-22

Publications (1)

Publication Number Publication Date
BE370722A true BE370722A (ja�@�@)

Family

ID=19785063

Family Applications (1)

Application Number Title Priority Date Filing Date
BE370722D BE370722A (ja�@�@) 1929-06-22

Country Status (4)

Country Link
BE (1) BE370722A (ja�@�@)
FR (1) FR696323A (ja�@�@)
GB (1) GB351723A (ja�@�@)
NL (1) NL32105C (ja�@�@)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547565A (en) * 1946-09-26 1951-04-03 Wright Zimmerman Inc Speaker having a tubular pot

Also Published As

Publication number Publication date
GB351723A (en) 1931-07-02
NL32105C (ja�@�@)
FR696323A (fr) 1930-12-29

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