490

General Motors of Canada; Oshawa

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  • Year
  • 1942–1949
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 181597

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superhet with RF-stage; ZF/IF 260 kHz
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Power out
  • 7 W (9 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 490 - General Motors of Canada;
  • Shape
  • Chassis only or for «building in»
  • Notes

  • This receiver was specifically designed for 1942 to 1948 Chevrolet passenger cars as well as 1947 to 1949 GMC and Maple Leaf trucks. Also used in 1949 Pontiac and 1946 to 1949 Oldsmobile passenger cars.

    Current consumption 7.2A at 6.3V. Use 15A fuse. Speaker 6x9 inch eliptical. Uses # 51 pilot lamp. Has a synchronous vibrator for +B. For negative ground only.

  • Source of data
  • -- Original-techn. papers.
  • Circuit diagram reference
  • Radio College of Canada
  • Literature/Schematics (1)
  • Canada Supplements General Motors page 60 to 62
  • Author
  • Model page created by Dirk Taekels. See "Data change" for further contributors.

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