Epiphone Viola Bass A electric guitar collection is essentially just like an energetic microphone coil. For decades, energetic microphones have been wired with the style coil attached to the principal of the microphone's transformer, and maybe not recommended to ground (‘floating'). The microphone's event is normally connected to the wire shield, which will be attached to the mike amplifier's surface (see Rane's site for more discussion).
By and big, active microphones are very quiet products as a result of the mixture of transformer solitude and healthy, floating transmission lines during, in addition to protected, humbucking coils.
So why not instruments? Guitars are once plagued by noise. Humbucking pickups are merely an incomplete (though essential!) solution. The most obvious option is always to move the guitar collection to a healthy productivity, just like a microphone. An identical idea was printed that 2001 patent application such as Epiphone Viola Bass?