• Year
  • 1983 ??
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 127618
    • 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 Transistors
  • 12
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 460/10700 kHz
  • Tuned circuits
  • 5 AM circuit(s)     7 FM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and FM or UHF.
  • Details
  • Cassette-Recorder or -Player
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 12 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 20 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Madrid 23 7.642.541.412 - Blaupunkt Ideal, Berlin,
  • Shape
  • Chassis only or for «building in»
  • Dimensions (WHD)
  • 180 x 50 x 165 mm / 7.1 x 2 x 6.5 inch
  • Notes
  • Cassette player is stereo. Manufacture is Blaupunkt of Bosch Gruppe.

    FM range to 108 MHz.
    5 ICs. Output power (music) 2 x 10 watt at 2 ohm.

    See also domestic model Madrid 23 with FM up to 104 MHz.

    Made in France.

  • Net weight (2.2 lb = 1 kg)
  • 1.2 kg / 2 lb 10.3 oz (2.643 lb)
  • Mentioned in
  • -- Original-techn. papers.
  • Author
  • Model page created by Eero Ukkola. See "Data change" for further contributors.

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