• Country
• Germany

• Manufacturer / Brand
• Blaupunkt (Ideal), Berlin, später Hildesheim

• Year
• 1981/1982

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 209575

• • 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.

• Number of Transistors
• 26

• Semiconductors

• Main principle
• Superheterodyne (common)

• 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).

• Material
• Metal case

• from Radiomuseum.org
• Model: Hamburg MR21 7.641.590.510 ab Nr. P 3521001 - Blaupunkt Ideal, Berlin,

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 179 x 50 x 150 mm / 7 x 2 x 5.9 inch

• Notes
• 4 NF Endstufen, 4x 7 Watt Sinusleistung.

• Net weight (2.2 lb = 1 kg)
• 2 kg / 4 lb 6.5 oz (4.405 lb)

• Mentioned in
• -- Original prospect or advert

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Richard Winter. See "Data change" for further contributors.

• Other Models

• Here you find 3590 models, 3278 with images and 2330 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim