Sammy Hagar St Louis A guitar pickup is actually similar to a powerful mike coil. For many years, active microphones have been sent with the style coil attached with the principal of the microphone's transformer, and maybe not referenced to surface (‘floating'). The microphone's event is typically connected to the cable guard, that is linked to the mike amplifier's surface (see Rane's website for more discussion).
By and big, dynamic microphones are very quiet units consequently of the mix of transformer isolation and balanced, floating transmission lines during, in addition to guarded, humbucking coils.
So you will want to guitars? Guitars are once affected by noise. Humbucking pickups are merely an incomplete (though essential!) solution. The obvious solution would be to float the guitar pickup to a balanced production, as being a microphone. A similar thought was printed this 2001 patent request like this Sammy Hagar St Louis?