Electromagnetic pickup for stringed musical instruments

Details Electromagnetic pickup for stringed musical instruments Electromagnetic pickup for stringed musical instruments

1993-02-19

1995-03-21

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

G10H 318

Patent

active

053998022

ABSTRACT:
An electromagnetic pickup for a stringed musical instrument has an elongated permanent magnet associated with a plurality of pole pieces to establish a magnetic field in which the strings vibrate. The strength of the magnetic field is reduced a desired amount to achieve pleasing tonal quality, by providing a gap in the magnetic circuit between the magnet and the pole pieces. The gap is established by supporting the pole pieces in a retainer bar of non-magnetizable material at predetermined distances from its edge and assembling the elements such that the edge of the retainer bar abuts the adjacent pole face of the magnet. Alternatively, a pole piece with a reduced diameter end may be retained relative to its respective magnet pole face so as to provide an air gap therebetween. Both dual and single bobbin embodiments are described.

REFERENCES:
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patent: 2911871 (1959-11-01), Schultz
patent: 3588311 (1971-06-01), Zoller
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patent: 4283982 (1981-08-01), Armstrong
patent: 4372186 (1983-02-01), Aaroe
patent: 4501185 (1985-02-01), Blucher
patent: 4624172 (1986-11-01), McDougall
patent: 4809578 (1989-03-01), Lace, Jr.
patent: 4878412 (1989-11-01), Resnick
patent: 5111768 (1992-05-01), Blucher et al.
patent: 5168117 (1992-12-01), Anderson

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