• Year
  • 1929–1931
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 474
    • alternative name: Ideal-Radiotelephon- und App-fabr. || Ideal-Werke AG; Berlin (ab 1934)
    • Brand: Rotstern

 Technical Specifications

  • Number of Tubes
  • 2
  • Main principle
  • TRF with regeneration; 1 AF stage(s)
  • Tuned circuits
  • 1 AM circuit(s)
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Direct Current supply (DC) / 220 Volt
  • Loudspeaker
  • Magnetic loudspeaker (reed) of high quality (4 magnet poles).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: NR II - Blaupunkt Ideal, Berlin,
  • Dimensions (WHD)
  • 410 x 295 x 115 mm / 16.1 x 11.6 x 4.5 inch
  • Notes
  • [514, 560, 569]
  • Net weight (2.2 lb = 1 kg)
  • 3.5 kg / 7 lb 11.3 oz (7.709 lb)
  • Price in first year of sale
  • 140.00 RM !
  • Circuit diagram reference
  • Lange + FS-Bestückungstabellen
  • Picture reference
  • Das Gerät ist im Doppelband "Historische Radios" von Günther Abele abgebildet.

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