D-55T

The D-55T is the early Discman that brought Walkman-style convenience to CD playback by adding an AM/FM tuner with television audio band support. The lid served as a full tuning scale and the headphone cable doubled as the antenna, while mono/stereo switching and local/distance tuning made the radio side more than a novelty even if reception still depended heavily on where you were listening.

Sony understood very quickly that convenience mattered almost as much as digital novelty. The core CD hardware stayed close to the D-50MkII, but the added tuner changed the personality of the machine. This is the kind of player that made more sense in a commute bag or on a trip, where carrying one device that could cover both discs and radio started to matter.