GB298209A - - Google Patents

Info

Publication number
GB298209A
GB298209A GB28688/28A GB2868828A GB298209A GB 298209 A GB298209 A GB 298209A GB 28688/28 A GB28688/28 A GB 28688/28A GB 2868828 A GB2868828 A GB 2868828A GB 298209 A GB298209 A GB 298209A
Authority
GB
United Kingdom
Prior art keywords
reed
pole
pieces
gap
magnetic
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
GB28688/28A
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.)
Cutler Hammer Europe Ltd
Original Assignee
Igranic Electric Co Ltd
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 Igranic Electric Co Ltd filed Critical Igranic Electric Co Ltd
Publication of GB298209A publication Critical patent/GB298209A/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)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Magnetic Treatment Devices (AREA)
GB28688/28A 1927-10-05 1928-10-05 Expired GB298209A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US224050A US1701000A (en) 1927-10-05 1927-10-05 Electromagnetic phonographic reproducer

Publications (1)

Publication Number Publication Date
GB298209A true GB298209A (fr) 1929-11-14

Family

ID=22839097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28688/28A Expired GB298209A (fr) 1927-10-05 1928-10-05

Country Status (2)

Country Link
US (1) US1701000A (fr)
GB (1) GB298209A (fr)

Also Published As

Publication number Publication date
US1701000A (en) 1929-02-05

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