Hmmm, what's that sticker on the side of the transformer. Let's take a closer look.
Yup, good old PCB's. Except no substitutes when cooling a transformer. In what could be the ultimate example of "if it ain't broke" this power supply lasted past the closing of the tower, past the formation of the Penn Central and Conrail and right up to the point that ALTO itself was closed and eliminated with those persistent organic pollutants staying stable, year in, year out. This wasn't the only example either. There were two more at the SLOPE relay plant.