• Country
• Germany

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

• Year
• 1974–1976 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 356293

• • 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
• 17

• Semiconductors
• 2SC1047 LA1201 2SC829 2SC644 2SC828 2SA751 2SC1406 2SC1327 1S1555 1K90 2-1K60 SR1K2

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

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

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

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Line / Batteries (any type) / 220 / C: 6 × 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical

• Power out
• 1 W (unknown quality)

• Material
• Various materials

• from Radiomuseum.org
• Model: Bongo CR/II 7.654.054 [OIRT] - Blaupunkt Ideal, Berlin,

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

• Dimensions (WHD)
• 370 x 212 x 80 mm / 14.6 x 8.3 x 3.1 inch

• Notes

• FM: OIRT band 64-73 MHz.

  Each solid state device listed once.
  A transistor 2SA757 in the output stage is an error, in fact it's the type 2SA751. This is the complementary transistor to the 2SC1406.

  See also Blaupunkt Bongo CR with FM CCIR band 87.5 to 104 MHz

• Net weight (2.2 lb = 1 kg)
• 3.7 kg / 8 lb 2.4 oz (8.15 lb)

• Mentioned in
• -- Schematic (Csabai Dániel: Rádió-magnók szervízkönybve I.)

• Author
• Model page created by Sándor Selyem-Tóth. See "Data change" for further contributors.

• Other Models

• Here you find 3596 models, 3284 with images and 2333 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim