Guitar Pedal Switcher Schematic A best guitar pickup is basically just like a powerful microphone coil. For decades, active microphones have now been wired with the voice coil attached to the primary of the microphone's transformer, and not introduced to ground (‘floating'). The microphone's event is typically connected to the cable guard, which can be connected to the microphone amplifier's ground (see Rane's web site for more discussion).
By and big, vibrant microphones are very quiet products as a result of the combination of transformer isolation and balanced, suspended sign lines all through, as well as guarded, humbucking coils.
Therefore why not guitars? Guitars are notoriously plagued by noise. Humbucking pickups are merely an incomplete (though crucial!) solution. Well-known solution would be to float your guitar collection to a balanced production, being a microphone. A similar strategy was printed this 2001 patent request such as Guitar Pedal Switcher Schematic?