• Country
• Germany

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

• Year
• 1972/1973

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

• Radiomuseum.org ID
• 28799

• • 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
• 9

• Semiconductors
• BF255 BF255 BF255 BF254 BF254 BC148 BC328 AD156 AD157

• Main principle
• Superheterodyne (common); ZF/IF 460/10700 kHz

• Tuned circuits
• 7 AM circuit(s)     10 FM circuit(s)

• Wave bands
• Broadcast (BC) and 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: Ludwigshafen 7.632.321 ab 690001 - Blaupunkt Ideal, Berlin,

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 153 x 38 x 92 mm / 6 x 1.5 x 3.6 inch

• Notes
• Dioden: 8

• Net weight (2.2 lb = 1 kg)
• 0.7 kg / 1 lb 8.7 oz (1.542 lb)

• External source of data
• Erb

• Source of data
• Handbuch VDRG 1972/1973

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

• 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