Gibson J 45 Standard A electric guitar pickup is actually much like a dynamic microphone coil. For decades, active microphones have now been wired with the style coil attached with the primary of the microphone's transformer, and not introduced to ground (‘floating'). The microphone's case is typically attached to the cable guard, which will be connected to the microphone amplifier's floor (see Rane's website for more discussion).
By and large, active microphones are extremely calm devices as a result of the mixture of transformer isolation and healthy, flying sign lines all through, in addition to protected, humbucking coils.
Therefore you will want to guitars? Guitars are once affected by noise. Humbucking pickups are merely a partial (though crucial!) solution. The most obvious option would be to move practicing the guitar pickup to a healthy production, as being a microphone. A similar strategy was published that 2001 patent request such as Gibson J 45 Standard?