Vox Valvetronix Ad50 Vt A electric guitar pickup is actually similar to a dynamic mike coil. For many years, energetic microphones have now been sent with the style coil attached to the primary of the microphone's transformer, and not called to surface (‘floating'). The microphone's case is typically linked to the cable shield, that is attached to the microphone amplifier's ground (see Rane's site for more discussion).
By and big, energetic microphones are extremely quiet products consequently of the mixture of transformer solitude and balanced, hanging indication lines for the duration of, in addition to protected, humbucking coils.
Therefore why not guitars? Instruments are once affected by noise. Humbucking pickups are just a partial (though important!) solution. The most obvious solution would be to move practicing the guitar collection to a balanced productivity, just like a microphone. An identical strategy was printed this 2001 patent software such as Vox Valvetronix Ad50 Vt?