• Country
• Germany

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

• Year
• 1969–1971

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

• Radiomuseum.org ID
• 111465

• • 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
• 8

• Semiconductors
• AF106 BF243 BF184 BF255 BF184 BF184 AD161 AD162 TAA435 BA124 AA112 AA119

• Main principle
• Superhet with RF-stage; ZF/IF 452/10700 kHz

• Tuned circuits
• 8 AM circuit(s)     11 FM circuit(s)

• Wave bands
• Broadcast, Long Wave, Short Wave plus FM or UHF.

• 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
• 4 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Essen IC 7.639.209 ab 2860001 - Blaupunkt Ideal, Berlin,

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 178 x 50 x 147 mm / 7 x 2 x 5.8 inch

• Notes

• AM-ZF: 4 LC-Kreise mit zusätztlichem Piezo-Filter.
  Erstmaliger Einsatz einer integrierten Schaltung TAA435 (NF-Vor- und Treiberstufe) in einem Blaupunkt-Autoradio.

  Dioden teilweise mehrfach vorhanden.

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

• Source of data
• Handbuch VDRG 1969/1970

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

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

• Other Models

• Here you find 3525 models, 3214 with images and 2320 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim