Under the skin, the Fender Telecaster Deluxe humbucker looks like any other: two coil bobbins side by side, screwed to a base plate with magnets sandwiched in between. To take off the cover, you’ll need to break two small solder joints holding the cover to the base plate. Notice the wax-impregnated felt strip that Fender jams between the bobbins and the pickup cover. Ironically, this is to kill microphonic feedback. We took this out carefully, noting the wrap, so we could put it back later.