Livewire Cable Tester A electric guitar pickup is essentially just like a powerful mike coil. For decades, dynamic microphones have now been sent with the voice coil mounted on the primary of the microphone's transformer, and maybe not referenced to surface (‘floating'). The microphone's case is typically linked to the cable shield, which will be connected to the microphone amplifier's soil (see Rane's internet site for more discussion).
By and large, dynamic microphones are very quiet products as a result of the mix of transformer isolation and healthy, hanging transmission lines during, as well as protected, humbucking coils.
Therefore why not guitars? Instruments are notoriously plagued by noise. Humbucking pickups are merely a partial (though crucial!) solution. The obvious solution is always to move practicing the guitar collection to a balanced productivity, being a microphone. A similar strategy was published this 2001 patent program like this Livewire Cable Tester?