Electric Guitar Epiphone Fender Stratocaster A guitar pickup is essentially similar to a dynamic mike coil. For decades, powerful microphones have now been sent with the voice coil attached with the principal of the microphone's transformer, and perhaps not recommended to surface (‘floating'). The microphone's event is typically attached to the cable guard, that is attached to the microphone amplifier's soil (see Rane's website for more discussion).
By and big, vibrant microphones are very calm devices as a result of the mixture of transformer isolation and balanced, flying sign lines for the duration of, as well as shielded, humbucking coils.
So why not instruments? Guitars are once affected by noise. Humbucking pickups are only an incomplete (though essential!) solution. The most obvious solution would be to float practicing the guitar collection to a healthy output, just like a microphone. The same idea was published this 2001 patent application such as Electric Guitar Epiphone Fender Stratocaster?