• Country
• Germany

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

• Year
• 1960/1961

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

• Radiomuseum.org ID
• 169716

• • 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 Tubes
• 3

• Valves / Tubes
• ECH81 EBF89 ECF83

• Number of Transistors
• 3

• Semiconductors
• OC30 OC30 TF78/30 E125C15

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 6/12 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 4 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Bremen TR ab D 709800 - Blaupunkt Ideal, Berlin,

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 183 x 82 x 168 mm / 7.2 x 3.2 x 6.6 inch

• Notes
• Blaupunkt Bremen TR ist ein hybrid-bestücktes Autoradio mit Röhren in HF-Teil und NF-Vorstufe, die Endstufe arbeitet mit 2 Transistoren. Die Anodenspannung wird hier durch einen Transistor-Sperrschwinger erzeugt.

• Net weight (2.2 lb = 1 kg)
• 2.5 kg / 5 lb 8.1 oz (5.507 lb)

• Source of data
• - - Manufacturers Literature

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

• Author
• Model page created by Antonio Barros-Regada. 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