• Year
  • 1948 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 116044
    • Brand: Co-op

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 465 kHz; 2 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • AC/DC-set / 115 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 inch = 15.2 cm
  • from Radiomuseum.org
  • Model: R-646 - National Cooperatives, Inc.;
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • Most likely manufactured by Setchell Carlson.

    Earlier version (confirmed made by Setchell Carlson) without the RF amp stage and earlier tubes is the R-546.

  • Circuit diagram reference
  • Rider's Perpetual, Volume 19 = 1949 and before
  • Author
  • Model page created by Egon Penker. See "Data change" for further contributors.

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