Willie Nelson Guitar Strings A guitar pickup is essentially just like a vibrant microphone coil. For many years, dynamic microphones have now been wired with the voice coil attached with the principal of the microphone's transformer, and perhaps not recommended to soil (‘floating'). The microphone's case is usually attached to the wire shield, which will be connected to the microphone amplifier's floor (see Rane's site for more discussion).
By and large, powerful microphones are extremely calm units as a result of the mixture of transformer isolation and healthy, hanging indication lines for the duration of, in addition to shielded, humbucking coils.
So you will want to instruments? Guitars are notoriously plagued by noise. Humbucking pickups are only a partial (though crucial!) solution. The obvious alternative would be to float your guitar collection to a healthy output, being a microphone. The same idea was printed this 2001 patent request like this Willie Nelson Guitar Strings?