• Country
• Germany

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

• Year
• 1983–1985

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

• Radiomuseum.org ID
• 152098

• • 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
• Semiconductors present.

• Semiconductors

• Main principle
• PLL, Phase-locked loop

• 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
• 18 W (20 W max.)

• Material
• Metal case

• from Radiomuseum.org
• Model: Köln SQR23 7.641.898.111 - Blaupunkt Ideal, Berlin,

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 180 x 56 x 200 mm / 7.1 x 2.2 x 7.9 inch

• Notes

• Köln SQR23 (7.641.898.111), Stereo, LCD-Anzeige, sechs Stationsspeicher, Höhen- und Bassregler, ARI-Decoder, CPS.

• Net weight (2.2 lb = 1 kg)
• 1.8 kg / 3 lb 15.4 oz (3.965 lb)

• Mentioned in
• -- Original prospect or advert (Blaupunkt Autoradio/Autohifi 84 und 84/85)

• Author
• Model page created by Karlheinz Fischer. See "Data change" for further contributors.

• Other Models

• Here you find 3591 models, 3280 with images and 2332 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim