China Cymbals Ebay A guitar pickup is essentially just like a dynamic mike coil. For decades, energetic microphones have already been wired with the voice coil attached with the primary of the microphone's transformer, and not called to soil (‘floating'). The microphone's event is typically linked to the wire guard, which is connected to the mike amplifier's ground (see Rane's website for more discussion).
By and big, energetic microphones are very calm devices consequently of the combination of transformer isolation and balanced, hanging transmission lines through the duration of, as well as guarded, humbucking coils.
Therefore why not guitars? Guitars are notoriously affected by noise. Humbucking pickups are just an incomplete (though crucial!) solution. The obvious answer would be to float practicing the guitar pickup to a healthy result, being a microphone. The same thought was printed that 2001 patent request such as China Cymbals Ebay?