How to prevent DC leakage, and -thus- encourage the transference of DC, within a transformer.

As an additional sidenote, the Ammann Brothers did not need a surface area of the leaves of an old oak tree because they had it in the form of electric utility lines crisscrossing the city in which they lived, whether it was Seattle or Denver, and (so) by way of inductive coupling was an extension made possible which, in Nathan Stubblefield‘s case: was the leaves as well as the other surface areas of an old oak tree. So, the purpose of the old oak tree was subdivided into the two functional distinctions of a radio tuner inside their house or inside their car serving as the frequency modulator while the electric utility lines running throughout their respective cities was the equivalency of the leaves of an old oak tree. So, both functions of surface area and frequency modulation as well as reception or transmission were both taken care of by an old oak tree in Nathan Stubblefield’s case. But this singular component was split into two separate functions of a radio tuner and the extensive utility lines throughout the city, situated close by, in the case of the Ammann brothers.