Thanks, Jack. The eddie current brake sits on the base at the back of the flywheel. There are 4, 1-inch neodymium magnets, 2 on each side of the flywheel rim. As the flywheel turns between these magnets, a small current is generated in the flywheel which in turn is converted to heat (not enough to feel). This places a small load on the engine and makes it run slower.
Chuck