Single pickup frequency control for stringed instrument

Claim 1

A stringed musical instrument such as a guitar, having a body provided with a face, a neck connected to the body and spaced apart magnetizable strings extending over the neck and over the face with means for connecting ends of the strings to the body and opposite ends of the strings to the neck, the improvement comprising: a single pickup device secured transversely beneath the strings to the face of the body, said single pickup device having a permanent magnet, the opposite faces of said magnet constituting north and south poles and one pole of which is directly beneath all strings, a plate of magnetic material dividing the magnet laterally, said plate surrounding the magnet from end to end and formed with a central slot having the same outline as the outline of the magnet, for receiving the magnet therein, and separate coils surrounding the magnet on opposite sides of the plate, the coils being electrically connected at one end of each thereof, electric current in one coil flowing clockwise and in the other coil counterclockwise the other ends of the coils leading to an amplifier and loud speaker assembly.