The asiago super-novae catalogue, Ten years after
1999
An attenuator for audiometers and including a 5 dB step attenuator ladder, additional 1 dB step attenuator resistances connected in series with each other and connected by means of switching areas and wiper contacts moving over such switching areas of a switching plate to sequentially connect all of such resistances in series with the attenuator ladder and progressively short each such resistance out of the attenuation circuit as the wiper contacts move across the switching areas and thereby obtain a 1 dB step attenuation while maintaining the large increments in the 5 dB step attenuator ladder.
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