Alnico magnet

Alnico magnets are widely used in industrial and consumer applications where strong permanent magnets are needed; examples are electric motors, electric guitar pickups, microphones, sensors, louderspeakers, travelling-wave tubes, and cow magnets. In many applications they are being superseded by rare earth magnets, whose stronger fields (B_r) and larger energy products (BH_max) allow smaller size magnets to be used for a given application.