• Year
  • 1949/1950
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 730
    • alternative name: Ideal-Radiotelephon- und App-fabr. || Ideal-Werke AG; Berlin (ab 1934)
    • Brand: Rotstern

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 473 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Ready for FM but has not all AM bands (not LW MW SW).
  • Power type and voltage
  • AC/DC-set / 110/220 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: US4R H - Blaupunkt Ideal, Berlin,
  • Notes
  • nur 1 var. L!

    Die Reihenfolge der einzelnen Suffixe ist nicht eindeutig festgelegt. Sie bedeuten im einzelnen:
    K= Kurzwelle (anstatt LW);
    P= Pressstoff (Bakelit);
    H= Holz;
    R= Rimlockröhren.
  • Price in first year of sale
  • 262.00 DM
  • Source of data
  • Radiokatalog Band 1, Ernst Erb
  • Circuit diagram reference
  • Lange Schaltungen der Funkindustrie, Buch 2

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