Description
Make and Model: Blaupunkt Frankfurt SM 21
Classic Car era: 1981 – 1987
Face-plate: Standard 1-DIN size.
On-board voltage: 12V, negative earth / ground only
Output power: 2 x 6 Watt (4 Ohm), 2 x 10 Watt (2 Ohm)
Impedance: 2-4 Ohm
Rendition: STEREO, 2 speakers. Four speakers possible connected in series (two 4 Ohm per channel – 2 Ohm) or parallel (two 8 Ohm speakers – 4 Ohm). The impedance is important otherwise you will damage the internal amplifier.
Wave Range: long wave, medium wave, short wave, UKW (FM)
Frequency range UKW (FM): 88MHz-104MHz
Equipment: Night design lighting, automatic channel search, AM manual channel search, tone adjustment, 3 x U / FM preset buttons, mono-stereo selection, and ARI (Traffic system, discontinued in 2005), connection for automatic antenna, 7-pin DIN connection for optional external stereo devices (in period cassette players) like the Classentials Deluxe 7-pin DIN Stereo Bluetooth module.
Design type: Transistor radio
Year of introduction: 1981
Dimensions unit (width x height x depth in mm): 180 x 50 x 178 / 7,0 x 1,9 x 7 inch (back to back of face-plate)
Dimensions face-plate (width x height in mm): 188 x 60 / 7,4 x 2,3 inch
Weight (kg): 1
Extra in packaging: Original factory installation kit with 1-DIN bracket, 12 volt wire with fuse, earth wire manual, instructions, technical blueprint. Two DIN speaker plugs and additional rear mounting strip / bracket.
Installing: Basic car conditions before installation: Radio prepared car with dashboard openings, 12V power lead, analog telescopic antenna, standard speakers with wiring.
Handy customers experienced with working and tinkering on classic cars can install a radio by themselves. All others we strictly advise to have their vintage radio installed by an experienced mechanic / electrician / local garage. Our installation kits contain the parts and instructions needed to install a radio in a factory original prepared car.
*1.5 years (18 months) European / US warranty (See About Us / FAQ). In the rare case that a reliable Blaupunkt transistor radio stops working you send it back to us for immediate exchange (in case a comparable unit is in stock) or repair. The radio is sealed before shipping with a unique numbered security seal which cannot be tampered with. If this seal is damaged / broken the warranty will be void.
“Enjoy the Ride!”



















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