Based on the specs of Telecaster pickups produced in 1952, with AlNiCo 3 magnets and scatter wound with 42awg plain enamel wire to roughly 7.5k to to create a clear, articulate pickup with plenty of that classic Telecaster twang. 

Using vintage style cloth push-back hook up wire it has a separate ground wire for the bridge baseplate or neck cover, so you can make sure it has the correct phase to match any other pickup you may have installed.

As standard these pickups are lightly wax potted to allow a more open and detailed sound, but reduce the chances of any unwanted microphonic feedback caused by the cover or baseplate.