Nagra

Swiss maker of portable tape recorders, which became the standard for film, radio and journalism.

Stefan Kudelski was a student in Lausanne when he built the first portable tape recorder, and the name Nagra means will record in Polish. The Nagra III of 1958 was battery-powered and very accurate.

Nagra became the standard for recording sound on film, and its recorders were used in news reporting and documentaries. The company is now part of the Kudelski Group.

A metal case with large controls and a needle meter.

Model numbers in Roman numerals, such as III and IV.

• Technology and industrial design