Jimi Hendrix Movie A electric guitar pickup is basically similar to a powerful mike coil. For decades, dynamic microphones have now been wired with the voice coil attached to the principal of the microphone's transformer, and perhaps not introduced to surface (‘floating'). The microphone's event is usually attached to the wire guard, which will be connected to the microphone amplifier's ground (see Rane's website for more discussion).
By and big, active microphones are extremely quiet devices as a result of the mix of transformer isolation and healthy, hanging sign lines during, along with guarded, humbucking coils.
So why not instruments? Guitars are notoriously plagued by noise. Humbucking pickups are only an incomplete (though crucial!) solution. The most obvious option is always to move the guitar pickup to a balanced result, being a microphone. The same idea was printed that 2001 patent program such as Jimi Hendrix Movie?