Left Handed Fender Precision Bass A guitar collection is actually just like an energetic microphone coil. For many years, active microphones have been sent with the voice coil attached to the primary of the microphone's transformer, and not recommended to ground (‘floating'). The microphone's event is usually connected to the wire shield, that is linked to the microphone amplifier's soil (see Rane's website for more discussion).
By and big, energetic microphones are extremely calm devices consequently of the mix of transformer isolation and healthy, hanging sign lines during, in addition to guarded, humbucking coils.
So why not guitars? Guitars are notoriously affected by noise. Humbucking pickups are merely an incomplete (though essential!) solution. The most obvious answer is always to float practicing the guitar collection to a healthy result, as being a microphone. The same thought was printed this 2001 patent application like this Left Handed Fender Precision Bass?