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IEC 60118-4 Ed. 1.0 b:1981

IEC 60118-4 Ed. 1.0 b:1981

IEC 60118-4 Ed. 1.0 b:1981 [ Withdrawn ] Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes

standard by International Electrotechnical Commission, 01/01/1981

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Applies to audio-frequency induction loop systems producing an alternating magnetic field and intended to provide an input signal for hearing aids operating with an induction pick-up coil. Specifies a standard value of magnetic field strength in audio-frequency induction loops for hearing aid purposes, such as will give an adequate signal-to-noise ratio without overloading the hearing aid.

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Edition: 1.0 Published: 01/01/1981 Number of Pages: 9 File Size: 1 file , 510 KB

 
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