Studio Monitor Under 200 A electric guitar pickup is essentially just like an energetic mike coil. For decades, energetic microphones have already been sent with the style coil attached to the primary of the microphone's transformer, and not referenced to surface (‘floating'). The microphone's event is normally linked to the cable shield, which is connected to the microphone amplifier's floor (see Rane's site for more discussion).
By and big, vibrant microphones are very calm units consequently of the mix of transformer isolation and healthy, floating sign lines for the duration of, in addition to shielded, humbucking coils.
So why don't you instruments? Guitars are once plagued by noise. Humbucking pickups are only a partial (though crucial!) solution. The most obvious solution is always to float your guitar collection to a healthy productivity, just like a microphone. An identical idea was printed this 2001 patent program such as Studio Monitor Under 200?