• Year
  • 1940/1941
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 119543
    • 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
  • 6
  • Main principle
  • Superhet with RF-stage; ZF/IF 468 kHz; 2 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and more than two Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 125; 220; 240 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 20 cm = 7.9 inch
  • Power out
  • 4 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 7W740 - Blaupunkt Ideal, Berlin,
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 540 x 400 x 285 mm / 21.3 x 15.7 x 11.2 inch
  • Notes
  • 3 x KW.
  • Source of data
  • -- Schematic
  • Circuit diagram reference
  • Schenk-Regelien
  • Author
  • Model page created by Francisc VISKY. See "Data change" for further contributors.

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