Guitar Strings On A 12 String A electric guitar pickup is essentially similar to a vibrant mike coil. For decades, vibrant microphones have now been wired with the voice coil attached with the primary of the microphone's transformer, and perhaps not called to soil (‘floating'). The microphone's case is typically connected to the wire guard, which will be attached to the mike amplifier's surface (see Rane's web site for more discussion).
By and big, dynamic microphones are very calm units consequently of the combination of transformer isolation and balanced, hanging sign lines during, along with protected, humbucking coils.
Therefore why not instruments? Guitars are notoriously plagued by noise. Humbucking pickups are only an incomplete (though crucial!) solution. The obvious solution is always to float the guitar pickup to a healthy result, just like a microphone. An identical thought was printed that 2001 patent application such as Guitar Strings On A 12 String?