WM-10Super Walkman

WML ID #106

Manufacturer: Sony

Model: WM-10

Nick: Super Walkman

Gang: Glamour Boys Stretchy

Year: 1983

Made in: Japan

Initial price: 100 $

Technical details, specifications

Battery: 1AA

Colors: yellow/gold white

Window: yes

Case: metal

Expandable: yes

Tape selector: Manual switch

Waterproof: no

Speaker: no

Functions

DC in: yes

Record by input: no

Record by int mic: no

Bass: no

Noise reduction: Dolby B NR

Radio: no

Remote control: no

Indicator: led

Description

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.

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.Via thngs