• Country
• Germany

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

• Year
• 1971/1972

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 28587

• • 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
• 12

• Semiconductors

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

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

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

• Power type and voltage
• Line / Batteries (any type) / 220 / 6 × 1,5; 2 × 4,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch

• Power out
• 1.5 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Rio 7.650.722 - Blaupunkt Ideal, Berlin,

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 295 x 168 x 74 mm / 11.6 x 6.6 x 2.9 inch

• Notes
• Bei Netzbetrieb beträgt die Ausgangsleistung 2 W. Automatische Regenerierung der Batterien bei Netzbetrieb.

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

• External source of data
• Erb

• Source of data
• Handbuch VDRG 1971/1972

• Other Models

• Here you find 3583 models, 3270 with images and 2328 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim