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GB781217A - Improvements in radio receivers and cabinets therefor - Google Patents

Improvements in radio receivers and cabinets therefor

Info

Publication number
GB781217A
GB781217A GB1292055A GB1292055A GB781217A GB 781217 A GB781217 A GB 781217A GB 1292055 A GB1292055 A GB 1292055A GB 1292055 A GB1292055 A GB 1292055A GB 781217 A GB781217 A GB 781217A
Authority
GB
United Kingdom
Prior art keywords
radio receivers
speaker
hole
cabinets
therefor
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
GB1292055A
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
Application filed by Individual filed Critical Individual
Priority to GB1292055A priority Critical patent/GB781217A/en
Publication of GB781217A publication Critical patent/GB781217A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Structure Of Receivers (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

781,217. Loud-speaker cabinets. SHIMIZU, T. May 4, 1955, No. 12920/55. Class 40(4). In an open-backed radio cabinet the usual hole S for the loud-speaker is supplemented by a hole H slightly spaced therefrom. The hole H has one edge E coinciding substantially with one quarter of the periphery of the flange F of the speaker, but is otherwise rectangular.
GB1292055A 1955-05-04 1955-05-04 Improvements in radio receivers and cabinets therefor Expired GB781217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1292055A GB781217A (en) 1955-05-04 1955-05-04 Improvements in radio receivers and cabinets therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1292055A GB781217A (en) 1955-05-04 1955-05-04 Improvements in radio receivers and cabinets therefor

Publications (1)

Publication Number Publication Date
GB781217A true GB781217A (en) 1957-08-14

Family

ID=10013558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1292055A Expired GB781217A (en) 1955-05-04 1955-05-04 Improvements in radio receivers and cabinets therefor

Country Status (1)

Country Link
GB (1) GB781217A (en)

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