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IEC 60118-2:1983 ed2.0

Заменен
Hearing aids. Part 2: Hearing aids with automatic gain control circuits — 17 стр.
Gives uniform methods for specifying dynamic and static performance characteristics of hearing aids with automatic gain control circuits together with the relevant methods of measurement for these characteristics.
ICS
17.140.50 Electroacoustics. Including sound level meters / Электроакустика. Включая слуховые аппараты и шумомеры