Peavey Special 212 A electric guitar collection is basically just like a powerful mike coil. For many years, dynamic microphones have already been sent with the voice coil attached with the principal of the microphone's transformer, and not referenced to floor (‘floating'). The microphone's situation is usually attached to the cable shield, which is connected to the mike amplifier's floor (see Rane's web site for more discussion).
By and big, dynamic microphones are very calm devices as a result of the mixture of transformer isolation and balanced, hanging transmission lines for the duration of, as well as guarded, humbucking coils.
Therefore why not instruments? Instruments are once affected by noise. Humbucking pickups are just a partial (though essential!) solution. The obvious solution is always to float practicing the guitar collection to a healthy production, as being a microphone. The same thought was printed that 2001 patent request like this Peavey Special 212?