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III THE INITIAL EXPERIMENT UTILIZING THE PRINCIPLE
Equipment Used in First Successful Attempt
Radioear Hearing Aid and Receivers Used in This
12 other sections not shown
actuator air-borne sound air-conduction receiver amplifier armature audio audiometer Bone Rec c.p.s. undistorted cathode-ray oscilloscope ceiver chamois cochlea commercial hearing aid conduction receiver conventional air-conduction conventional bone-conduction receiver diaphragm ear canal ear insert energy patterns Figure fixation foreign body reaction gold plating Hallowell Davis hearing aid receivers hearing aid user I I Q implant incision inner ear ion receiver level of loudness loudness level magnetic field magnetic metal plate magnetic-coupled bone magnetic-coupled bone-conduction receiver magnetic-coupled receiver magnetic-field magnetic-metal plate mastoid bone mastoid process mechanical vibration oscilloscope periosteum plate embedded pocket pole pieces Q I I receivers tested reception S. F. Lybarger sets the mastoid sine waves skull speech speech-perception tests stages tympanic membrane type of receiver types of hearing University of Wisconsin various receivers vibration pickup voltmeter Warren E