• Year
  • 1949/1950
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 728
    • 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
  • 4
  • Number of Transistors
  • 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
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 18 cm = 7.1 inch
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: US4P - Blaupunkt Ideal, Berlin,
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 390 x 250 x 185 mm / 15.4 x 9.8 x 7.3 inch
  • Notes
  • L-Abstimmung; UKW-Skala .

    Die Reihenfolge der einzelnen Suffixe ist nicht eindeutig festgelegt. Sie bedeuten im einzelnen:
    K= Kurzwelle (anstatt LW);
    P= Pressstoff (Bakelit);
    H= Holz;
    R= Rimlockröhren.
  • Net weight (2.2 lb = 1 kg)
  • 5 kg / 11 lb 0.2 oz (11.013 lb)
  • Price in first year of sale
  • 244.00 DM
  • Circuit diagram reference
  • Lange-Nowisch

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