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IEC 60118-2:1983/AMD1:1993 ed2.0

Заменен
Amendment 1 - Hearing aids. Part 2: Hearing aids with automatic gain control circuits — 13 стр.
Adds a new clause 9 to IEC 60118-2 second edition: AGC activated frequency response of hearing aids with a single channel AGC circuit in operation using pure tone signals.
ICS
17.140.50 Electroacoustics. Including sound level meters / Электроакустика. Включая слуховые аппараты и шумомеры