http://www.vacuumtuberadio.com/SONY/1979WALKMAN/
Sony Walkman TPS-L2
Articles about the Walkman TPS-L2
http://www.pcworld.com/article/id,123950-page,1/article.html
http://inventors.about.com/od/wstartinventions/a/Walkman.htm
http://news.bbc.co.uk/1/hi/entertainment/music/3859903.stm
http://thelongestlistofthelongeststuffatthelongestdomainnameatlonglast.com/first284.html