Vintage Tandberg Radio Solvsuper 8-31 5 Bands Norway 1960s Powers On Parts Only. The Vintage Tandberg Radio Solvsuper 8-31 is a classic piece of audio equipment from the 1960s, made in Norway. This radio receiver offers 5 different bands including Long Wave, Intermediate Wave, Short Wave, Fishing Wave, and FM Band, providing a wide range of listening options. With its retro design and functionality, this Tandberg radio is a piece of audio history that is sure to charm collectors and hobbyists alike.