Word: transist
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...Transist-Ear. Minneapolis' Maico Co. will begin sale next month of a hearing aid the size of a cigarette lighter which weighs only 2½ oz. Three germanium transistors take the place of vacuum tubes for amplification, and in place of conventional batteries, Transist-Ear's power comes from a mercury capsule the size of a dime, good for 75 hrs. Replacement capsules cost about 25?. Price: around...
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