Morley Volume Plus A electric guitar collection is actually much like a dynamic mike coil. For many years, energetic microphones have already been wired with the style coil attached with the principal of the microphone's transformer, and not recommended to floor (‘floating'). The microphone's case is normally connected to the wire shield, which will be connected to the microphone amplifier's surface (see Rane's site for more discussion).
By and big, dynamic microphones are very calm units as a result of the combination of transformer isolation and balanced, suspended sign lines throughout, in addition to shielded, humbucking coils.
So why not guitars? Guitars are notoriously affected by noise. Humbucking pickups are just a partial (though crucial!) solution. Well-known alternative is always to float the guitar collection to a balanced productivity, as being a microphone. The same idea was published that 2001 patent software like this Morley Volume Plus?