Darkglass Vintage Microtubes A best guitar pickup is actually just like a dynamic microphone coil. For decades, dynamic microphones have now been sent with the style coil mounted on the principal of the microphone's transformer, and not recommended to ground (‘floating'). The microphone's case is usually connected to the wire shield, which will be connected to the microphone amplifier's soil (see Rane's web site for more discussion).
By and big, vibrant microphones are very quiet units consequently of the mix of transformer isolation and healthy, flying indication lines throughout, in addition to shielded, humbucking coils.
Therefore why not guitars? Instruments are once plagued by noise. Humbucking pickups are merely an incomplete (though essential!) solution. The obvious solution is to float your guitar collection to a balanced production, being a microphone. The same idea was published this 2001 patent request like this Darkglass Vintage Microtubes?