Hearing Aid Evolution: II

Hearing Aid Evolution: Technology and Techniques – Part II Last week’s post was the first part of a three-part series on the “Evolution of Hearing Aid Technology and Techniques – A Ride Through History.” Last week focused first on factors that drive hearing aid development and then highlighted some of the major developments (primarily hardware) that…

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Hearing Aid Power Supply – Body Heat? Part I

Introduction/Background Powering hearing aids has taken a number of turns over the years – from carbon microphones, through A and B batteries (heater and power battery), other different sized zinc batteries, and finally to cells consisting primarily of mercury, silver, zinc air, and now again, into rechargeable cells.  But, what does the future hold? As…

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