Electromagnetic pickup for a plural-string musical instrument in

Music – Instruments – Electrical musical tone generation

Patent

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Details

G10H 318

Patent

active

054224322

ABSTRACT:
An electromagnetic pickup for a musical instrument, such as a guitar, strung with ferromagnetic strings, comprises an elongated laminated ferromagnetic (steel) core long enough to span all of the strings; there are at least four and usually six thin steel laminations in the core. An electrical pickup coil is wound in a coil form, usually plastic, that encompasses the core, and a vertically magnetized main permanent magnet engages the bottom edge of the core. The magnet is preferably formed of a resin impregnated with magnetic particles, is magnetized transversely, and maintains the core at a given polarity. A housing encloses the core, the coil, and the main magnet and provides for mounting the pickup in spaced relation to the strings so that the magnetic field encompasses the strings and string movement generates electrical signals to the coil. Preferably, there are additional permanent magnets to shield the sides of the core. Dual-coil humbucker embodiments of the pickup are described.

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