WM-10

Audio Cassette Player
Date of appearance: 1983
Trademark: Sony, Walkman
Manufacturer: Sony Corporation
Product Line: Walkman
Made in: Japan
Weight: g
Materials: aluminium case
Tags: sonywalkman, gregorybotha


The Sony WM-10 cassette player was released in the market in 1983. Its tiny size represents a tour-de-force of early 1980’s engineering. The WM-10 is actually smaller than the cassette it plays and needs to be slid open to make the cassette compartment large enough to accommodate the tape. Uses a single 1.5V AA type battery with a step-up DC-DC converter to boost the voltage to a useful level. Sony had used these devices in the past but for the WM-10 something all together smaller was needed. The converter used in the WM-10 was made using miniature components on a thin, flexible printed circuit. This was then rolled up on itself into a tube and tucked down the side of the chassis. By these means, a compact assembly that was well screened from the rest of the circuitry was realized. The single AA battery was housed in a compartment next to the heads at the top of the machine, and usefully employed the depth in the case required for the heads to retract into.

WM-10
Photo by Gregory Botha
Photo by Gregory Botha
Photo by Gregory Botha
Photo by Gregory Botha
Photo by Gregory Botha
Photo by Gregory Botha