Cordless Handheld Vacuum Cleaner Comparison A guitar collection is essentially much like an energetic microphone coil. For many years, vibrant microphones have now been wired with the style coil attached to the principal of the microphone's transformer, and maybe not called to floor (‘floating'). The microphone's event is usually connected to the cable shield, which will be linked to the mike amplifier's soil (see Rane's site for more discussion).
By and large, active microphones are extremely calm devices consequently of the combination of transformer isolation and balanced, flying indication lines throughout, in addition to protected, humbucking coils.
So why not guitars? Guitars are notoriously plagued by noise. Humbucking pickups are just a partial (though crucial!) solution. The most obvious alternative is to float practicing the guitar pickup to a balanced production, just like a microphone. An identical idea was published this 2001 patent application such as Cordless Handheld Vacuum Cleaner Comparison?