• Country
• Germany

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

• Year
• 1953/1954

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

• Radiomuseum.org ID
• 19462

• • 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
• 4

• Valves / Tubes
• ECH42 EAF42 EAF42 EL41

• Number of Transistors

• Semiconductors
• SM702/1Z or. SM702/2Z B250C100

• Main principle
• Superheterodyne (common); ZF/IF 450 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• 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).

• Material
• Metal case

• from Radiomuseum.org
• Model: A253 - Blaupunkt Ideal, Berlin,

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 183 x 76 x 168 mm / 7.2 x 3 x 6.6 inch

• Notes

• Zweiteilig, Empfänger und Stromversorgung (Zerhacker) getrennt.
  Abmessungen 187 x 117 x 73 mm.

  Siehe auch Blaupunkt Hamburg des Folgejahrgangs 1954/55 mit identischer Technik und Form.

• Price in first year of sale
• 285.00 DM

• External source of data
• Erb

• Source of data
• Kat.d.Rundf.GrossH.1953/54

• 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