Walkman: A História Ilustrada (1979–2004) A timeline of Sony’s cassette Walkman models from 1979 to 2004 - EP.5 - 1982: SONY WALKMAN WM-DD

 

Also released in 1982, the WM-DD merged the WM-2’s compact size with the WM-5’s metal body and added capstan servo control from the TC-D5. Its new Disc Drive mechanism cut wow and flutter, improving playback stability. Dolby was absent, but tape control was markedly tighter.