GB272990A - Improvements in or relating to electro-magnetic apparatus for use with gramophones in conjunction with loud speaking telephonic apparatus - Google Patents

Improvements in or relating to electro-magnetic apparatus for use with gramophones in conjunction with loud speaking telephonic apparatus

Info

Publication number
GB272990A
GB272990A GB766126A GB766126A GB272990A GB 272990 A GB272990 A GB 272990A GB 766126 A GB766126 A GB 766126A GB 766126 A GB766126 A GB 766126A GB 272990 A GB272990 A GB 272990A
Authority
GB
United Kingdom
Prior art keywords
armature
magnetic
holder
cores
gramophones
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
GB766126A
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.)
Individual
Original Assignee
Individual
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
Priority to BE340889D priority Critical patent/BE340889A/xx
Application filed by Individual filed Critical Individual
Priority to GB766126A priority patent/GB272990A/en
Publication of GB272990A publication Critical patent/GB272990A/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)
  • Accommodation For Nursing Or Treatment Tables (AREA)
GB766126A 1926-03-19 1926-03-19 Improvements in or relating to electro-magnetic apparatus for use with gramophones in conjunction with loud speaking telephonic apparatus Expired GB272990A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE340889D BE340889A (enrdf_load_stackoverflow) 1926-03-19
GB766126A GB272990A (en) 1926-03-19 1926-03-19 Improvements in or relating to electro-magnetic apparatus for use with gramophones in conjunction with loud speaking telephonic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB766126A GB272990A (en) 1926-03-19 1926-03-19 Improvements in or relating to electro-magnetic apparatus for use with gramophones in conjunction with loud speaking telephonic apparatus

Publications (1)

Publication Number Publication Date
GB272990A true GB272990A (en) 1927-06-20

Family

ID=9837382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB766126A Expired GB272990A (en) 1926-03-19 1926-03-19 Improvements in or relating to electro-magnetic apparatus for use with gramophones in conjunction with loud speaking telephonic apparatus

Country Status (2)

Country Link
BE (1) BE340889A (enrdf_load_stackoverflow)
GB (1) GB272990A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456388A (en) * 1946-04-03 1948-12-14 Lionel B Cornwell Magnetic sound translating head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456388A (en) * 1946-04-03 1948-12-14 Lionel B Cornwell Magnetic sound translating head

Also Published As

Publication number Publication date
BE340889A (enrdf_load_stackoverflow)

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