WM-BF23

The WM-BF23 is a simple FM/AM radio cassette Walkman that paired a manual tuner with basic cassette playback inside a compact plastic body with a viewing window and tape selector. There was no Dolby, no auto-reverse, and no sound-shaping circuitry beyond the essentials, leaving the machine focused entirely on inexpensive, direct combined listening. The radio and tape sections were laid out with the same late-1980s Sony simplicity seen across much of the accessible range.

The BF23 captures how many everyday combined-use Walkman Sony was now comfortable sustaining in parallel. It was not a standout tuner model, but one of the products that helped make "radio plus cassette" feel completely routine by the end of the decade. It was a very normal machine, and that normality is historically useful.