Introduced in 1979, the Sony Walkman reshaped how people listened to music by making it personal, portable, and private.
This visual guide documents the complete evolution of Sony’s cassette Walkman models from 1979 to 2004, tracing their design shifts, technological changes, and cultural impact across twenty-five years of portable audio.
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The Sony Walkman TPS-L2, released on July 1, 1979, changed how people listened to music on the go. It started with Sony’s co-founder Masaru Ibuka, who wanted a convenient way to enjoy opera during long flights. Sony engineers quickly responded by modifying the existing Pressman cassette recorder, building a working stereo prototype in just three days. They used the chassis of the TCM-600 cassette recorder, a model Sony had introduced the year before, in 1978.
Sony’s president was impressed enough by the prototype to predict sales of 2.5 million units, far beyond typical cassette recorders. To meet that goal, the chairman cut development from a year to four months and personally set key specifications.
Despite internal doubts, the first 3,000 units sold out immediately. A second run of 2,200 followed and vanished just as fast.
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