GB855966A - Combined loudspeaker and amplifier, particularly for radio receiving sets - Google Patents

Combined loudspeaker and amplifier, particularly for radio receiving sets

Info

Publication number
GB855966A
GB855966A GB2119857A GB2119857A GB855966A GB 855966 A GB855966 A GB 855966A GB 2119857 A GB2119857 A GB 2119857A GB 2119857 A GB2119857 A GB 2119857A GB 855966 A GB855966 A GB 855966A
Authority
GB
United Kingdom
Prior art keywords
amplifier
radio receiving
loudspeaker
receiving sets
combined loudspeaker
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
GB2119857A
Inventor
Arnaldo Piccinini
Luciano Foa
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.)
APPARECCHI RADIO E TELEVISIONE
Original Assignee
APPARECCHI RADIO E TELEVISIONE
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 APPARECCHI RADIO E TELEVISIONE filed Critical APPARECCHI RADIO E TELEVISIONE
Priority to GB2119857A priority Critical patent/GB855966A/en
Publication of GB855966A publication Critical patent/GB855966A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

855,966. Radio receiver loudspeaker arrangements. FABBRICA APPARECCHI RADIO E TELEVISIONE. July 4, 1957, No. 21198/57. Class 40(5). An electronic amplifier comprises a loudspeaker 1 having a metal frame and having at least one transistor amplifying stage 3 mounted either directly on the frame or via an intermediate member such as a bracket 2. The invention is suitable for use in a radio receiver for a vehicle. The metal bracket 2 serves as a heat sink for the transistor 3. Fig. 3 (not shown) relates to a circuit diagram of a suitable single stage amplifier.
GB2119857A 1957-07-04 1957-07-04 Combined loudspeaker and amplifier, particularly for radio receiving sets Expired GB855966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2119857A GB855966A (en) 1957-07-04 1957-07-04 Combined loudspeaker and amplifier, particularly for radio receiving sets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2119857A GB855966A (en) 1957-07-04 1957-07-04 Combined loudspeaker and amplifier, particularly for radio receiving sets

Publications (1)

Publication Number Publication Date
GB855966A true GB855966A (en) 1960-12-14

Family

ID=10158842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2119857A Expired GB855966A (en) 1957-07-04 1957-07-04 Combined loudspeaker and amplifier, particularly for radio receiving sets

Country Status (1)

Country Link
GB (1) GB855966A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499988A (en) * 1965-10-08 1970-03-10 Sanyo Electric Co Loudspeaker apparatus with audio frequency amplifier mounted thereon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499988A (en) * 1965-10-08 1970-03-10 Sanyo Electric Co Loudspeaker apparatus with audio frequency amplifier mounted thereon

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