Scanner for electronic musical instrument

摘要: A scanner for an electronic musical instrument employs a matrix having two sets of current conducting lines forming intersecting rows and columns, with plurality magnetic cores arranged at the intersections matrix. Individual ones both are energized successively to individually scan cores, one set connected gate which produces train output pulses on single line, in response operative magnetically couple other set. The normally maintained inoperative condition by exposing them saturating field. each selectively rendered moving field, relative core enabling effect coupling between operation key keyboard instrument, or actuating member switch selecting control function instrument.