GB792069A - Improvements in or relating to electromagnetic pick-ups for sound reproducing apparatus - Google Patents

Improvements in or relating to electromagnetic pick-ups for sound reproducing apparatus

Info

Publication number
GB792069A
GB792069A GB21956A GB21956A GB792069A GB 792069 A GB792069 A GB 792069A GB 21956 A GB21956 A GB 21956A GB 21956 A GB21956 A GB 21956A GB 792069 A GB792069 A GB 792069A
Authority
GB
United Kingdom
Prior art keywords
armature
ups
pick
trunnions
relating
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
GB21956A
Inventor
Arthur Charles Haddy
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.)
Decca Record Co Ltd
Original Assignee
Decca Record 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 Decca Record Co Ltd filed Critical Decca Record Co Ltd
Priority to GB21956A priority Critical patent/GB792069A/en
Publication of GB792069A publication Critical patent/GB792069A/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)

Abstract

792,069. Gramophone pick-ups. DECCA RECORD CO., Ltd. Sept. 20, 1956 [Jan. 3, 1956], No. 219/56. Class 40,(2). [Also in Group XXXIX] In an electromagnetic pick-up comprising a hollow armature 11 having integral supporting trunnions 12, 13 and carrying a stylus 10, the armature is resiliently mounted by rubber blocks 14, 15 or by the use of resilient trunnions on a fixed part of the pick-up which includes a coil 17 and aligned magnets 18, while the armature is centrally located within a coil support 16 by a synthetic or natural rubber bush 20 located between the trunnions and the armature centre. Specifications 615,421 and 615,423, [both in Group XXXIX], are referred to.
GB21956A 1956-01-03 1956-01-03 Improvements in or relating to electromagnetic pick-ups for sound reproducing apparatus Expired GB792069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB21956A GB792069A (en) 1956-01-03 1956-01-03 Improvements in or relating to electromagnetic pick-ups for sound reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21956A GB792069A (en) 1956-01-03 1956-01-03 Improvements in or relating to electromagnetic pick-ups for sound reproducing apparatus

Publications (1)

Publication Number Publication Date
GB792069A true GB792069A (en) 1958-03-19

Family

ID=9700513

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21956A Expired GB792069A (en) 1956-01-03 1956-01-03 Improvements in or relating to electromagnetic pick-ups for sound reproducing apparatus

Country Status (1)

Country Link
GB (1) GB792069A (en)

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