Precision Bass Special A electric guitar collection is basically similar to an energetic microphone coil. For decades, powerful microphones have already been wired with the style coil attached with the primary of the microphone's transformer, and perhaps not referenced to surface (‘floating'). The microphone's case is typically connected to the cable guard, which is linked to the mike amplifier's surface (see Rane's internet site for more discussion).
By and big, active microphones are extremely calm products consequently of the mix of transformer isolation and balanced, suspended sign lines all through, along with protected, humbucking coils.
Therefore why don't you instruments? Guitars are once plagued by noise. Humbucking pickups are just a partial (though crucial!) solution. The most obvious alternative would be to float the guitar pickup to a balanced result, just like a microphone. An identical strategy was printed this 2001 patent request such as Precision Bass Special?