GB391418A - Improvements in or relating to electric pick-ups comprising a ferromagnetic armatureadapted to turn on a pivot - Google Patents

Improvements in or relating to electric pick-ups comprising a ferromagnetic armatureadapted to turn on a pivot

Info

Publication number
GB391418A
GB391418A GB20710/31A GB2071031A GB391418A GB 391418 A GB391418 A GB 391418A GB 20710/31 A GB20710/31 A GB 20710/31A GB 2071031 A GB2071031 A GB 2071031A GB 391418 A GB391418 A GB 391418A
Authority
GB
United Kingdom
Prior art keywords
pivot
needle
point
armature
polepieces
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
GB20710/31A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB391418A publication Critical patent/GB391418A/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
GB20710/31A 1930-07-31 1931-07-20 Improvements in or relating to electric pick-ups comprising a ferromagnetic armatureadapted to turn on a pivot Expired GB391418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL391418X 1930-07-31

Publications (1)

Publication Number Publication Date
GB391418A true GB391418A (en) 1933-04-27

Family

ID=19785794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20710/31A Expired GB391418A (en) 1930-07-31 1931-07-20 Improvements in or relating to electric pick-ups comprising a ferromagnetic armatureadapted to turn on a pivot

Country Status (3)

Country Link
BE (1) BE381522A (enrdf_load_html_response)
FR (1) FR720528A (enrdf_load_html_response)
GB (1) GB391418A (enrdf_load_html_response)

Also Published As

Publication number Publication date
BE381522A (enrdf_load_html_response)
FR720528A (fr) 1932-02-20

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