Opel CD 300 RDS 7 642 856 520/521
Blaupunkt (Ideal), Berlin, später Hildesheim
- Country
 - Germany
 
- Manufacturer / Brand
 - Blaupunkt (Ideal), Berlin, später Hildesheim
 
- Year
 - 1992/1993
 
- Category
 - Car Radio, perhaps also + sound player/recorder
 
- Radiomuseum.org ID
 - 179544
 
- 
        
- alternative name: Ideal-Radiotelephon- und App-fabr. || Ideal-Werke AG; Berlin (ab 1934)
 - Brand: Rotstern
 
 
- Number of Transistors
 - Semiconductors present.
 
- Semiconductors
 
- Main principle
 - PLL, Phase-locked loop
 
- Wave bands
 - Broadcast, Long Wave and FM or UHF.
 
- Details
 - CD-Player, -Writer, MD, MOD (audio)
 
- 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).
 
- Material
 - Metal case
 
- from Radiomuseum.org
 - Model: Opel CD 300 RDS 7 642 856 520/521 - Blaupunkt Ideal, Berlin,
 
- Shape
 - Chassis only or for «building in»
 
- Notes
 - Blaupunkt Opel CD 300 RDS 7 642 856 520/521;
Benötigt Display im Fahrzeug. Endstufe 4x5 Watt 
- Source of data
 - - - Manufacturers Literature
 
- Author
 - Model page created by a member from A. See "Data change" for further contributors.
 
- Other Models
 - 
        
Here you find 3616 models, 3308 with images and 2357 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Blaupunkt (Ideal), Berlin, später Hildesheim