• Year
  • 1938/1939
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 592
    • 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
  • 7
  • Main principle
  • Superhet with RF-stage; ZF/IF 468 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 6/12 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 7A78 - Blaupunkt Ideal, Berlin,
  • Dimensions (WHD)
  • 290 x 170 x 168 mm / 11.4 x 6.7 x 6.6 inch
  • Notes
  • separate Kreis-Skala.
  • Net weight (2.2 lb = 1 kg)
  • 12 kg / 26 lb 6.9 oz (26.432 lb)
  • Price in first year of sale
  • 330.00 RM
  • Circuit diagram reference
  • Lange+Schenk+FS-Röhrenbestückung
  • Literature/Schematics (1)
  • -- Original prospect or advert (Blaupunkt Faltprospekt zum Autosuper 7A78)
  • Literature/Schematics (2)
  • -- Original-techn. papers.
  • Picture reference
  • Das Gerät ist im Doppelband "Historische Radios" von Günther Abele abgebildet.

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The model is part of the collections of the following members.

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