GB526087A - Improvements in or relating to radio-distribution receivers comprising a volume control device - Google Patents

Improvements in or relating to radio-distribution receivers comprising a volume control device

Info

Publication number
GB526087A
GB526087A GB7541/39A GB754139A GB526087A GB 526087 A GB526087 A GB 526087A GB 7541/39 A GB7541/39 A GB 7541/39A GB 754139 A GB754139 A GB 754139A GB 526087 A GB526087 A GB 526087A
Authority
GB
United Kingdom
Prior art keywords
loudspeaker
volume control
relating
radio
control device
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
GB7541/39A
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 GB526087A publication Critical patent/GB526087A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/82—Wired systems using signals not modulated onto a carrier
    • H04H20/83—Wired systems using signals not modulated onto a carrier not sharing the network with any other service

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

526,087. Loudspeaker circuits. NAAMLOOZE VENOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 8, 1939, No. 7541. Convention date, Feb. 25, 1939. Drawings to Specification. [Class 40 (iv)] A loudspeaker is coupled to a broadcast distribution network through a transformer which is tapped on the secondary side to provide volume control and which is such that in the event of a short-circuit in the loud-speaker circuit, the primary impedance is of the same order as when the control is adjusted for maximum volume. The primary winding has large self-induction and small leakage inductance and capacity so as to give a linear frequency characteristic. A further transformer may be inserted between the secondary winding and the loudspeaker.
GB7541/39A 1939-02-25 1939-03-08 Improvements in or relating to radio-distribution receivers comprising a volume control device Expired GB526087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL526087X 1939-02-25

Publications (1)

Publication Number Publication Date
GB526087A true GB526087A (en) 1940-09-10

Family

ID=19787072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7541/39A Expired GB526087A (en) 1939-02-25 1939-03-08 Improvements in or relating to radio-distribution receivers comprising a volume control device

Country Status (1)

Country Link
GB (1) GB526087A (en)

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