• Year
  • 1951/1952
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 812
    • 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
  • Number of Transistors
  • Main principle
  • Superhet with RF-stage; ZF/IF 473 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and 2 x Short Wave.
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 6; 12 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: A51K - Blaupunkt Ideal, Berlin,
  • Shape
  • Chassis only or for «building in»
  • Dimensions (WHD)
  • 205 x 135 x 305 mm / 8.1 x 5.3 x 12 inch
  • Notes
  • Separater permanent-dynamischer Lautsprecher (Ø 130 mm) im Lieferumfang. Bei 6-Volt-Betrieb: Zerhacker SM30/7z, bei 12-Volt-Betrieb: Zerhacker SM30/9z.
  • Net weight (2.2 lb = 1 kg)
  • 7.5 kg / 16 lb 8.3 oz (16.52 lb)
  • Price in first year of sale
  • 444.00 DM
  • Circuit diagram reference
  • Lange Schaltungen der Funkindustrie, Buch 2
  • Literature/Schematics (1)
  • -- Original-techn. papers. (ETL-Liste)

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