GB532253A - Improvements in wireless receiving apparatus - Google Patents

Improvements in wireless receiving apparatus

Info

Publication number
GB532253A
GB532253A GB20989/39A GB2098939A GB532253A GB 532253 A GB532253 A GB 532253A GB 20989/39 A GB20989/39 A GB 20989/39A GB 2098939 A GB2098939 A GB 2098939A GB 532253 A GB532253 A GB 532253A
Authority
GB
United Kingdom
Prior art keywords
speaker
july
knob
cabinet
components
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
GB20989/39A
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.)
Industrie Magneti Marelli SRL
Marelli Europe SpA
Original Assignee
Fabbrica Italiana Magneti Marelli SpA
Magneti Marelli SpA
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 Fabbrica Italiana Magneti Marelli SpA, Magneti Marelli SpA filed Critical Fabbrica Italiana Magneti Marelli SpA
Publication of GB532253A publication Critical patent/GB532253A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/08—Constructional details, e.g. cabinet

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Structure Of Receivers (AREA)

Abstract

532,253. Wireless receivers. FABRICA ITALIANA MAGNETI MARELLI. July 19, 1939, No. 20989. Convention date, July 21, 1938. [Class 40 (v)] [Also in Group XXXVI] The components of a wireless receiver are assembled separately instead of on the normal chassis and are built into the cabinet partly round the sides of the speaker and partly on an elongated support arranged between the components round the speaker and the back of the cabinet. The mains transformer 8 and rectifying valve 9 are mounted on one side of the speaker and the tuning condensers 12 and high frequency coil assemblage 10 on the other. The valves 7 and L.F. transformers 6 are arranged in a single row on an elongated chassis 5. The tuning dial comprises a graduated scale 13 carried by uprights 14 and a pointer 15 reciprocated by an endless band 16 passing over pulleys 17, 19. The wave change switch is controlled by a knob 11 and the volume by a knob 21.
GB20989/39A 1938-07-21 1939-07-19 Improvements in wireless receiving apparatus Expired GB532253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT532253X 1938-07-21

Publications (1)

Publication Number Publication Date
GB532253A true GB532253A (en) 1941-01-21

Family

ID=11281001

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20989/39A Expired GB532253A (en) 1938-07-21 1939-07-19 Improvements in wireless receiving apparatus

Country Status (1)

Country Link
GB (1) GB532253A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575030A2 (en) * 1992-03-03 1993-12-22 Nigel Iivari Anderson Laser positioning device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575030A2 (en) * 1992-03-03 1993-12-22 Nigel Iivari Anderson Laser positioning device
EP0575030A3 (en) * 1992-03-03 1994-11-09 Nigel Iivari Anderson Laser positioning device.
US5430549A (en) * 1992-03-03 1995-07-04 Anderson; Nigel I. Laser positioning device producing multiple parallel laser beams

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