[Technical characteristics of a transistor feeder for the amplification of bioelectrical potentials].
D004568:Electrodiagnosis; D055724:Electrophysiological Phenomena; D004594:Electrophysiology / Q000600:supply & distribution*; D004864:Equipment and Supplies; D006801:Humans; D012107:Research Design
ELECTRODIAGNOSIS; ELECTROPHYSIOLOGY/equipment and supplies