20120280590 | AC GENERATOR - AC generators are disclosed. Example generators may include a tubular air core, with high magnetic permeability and with a first and second end, the air core having a plurality of eddy current reducing slits passing from a radially outer surface of the air core to a radially inner surface of the air core; and a continuous coil made of conducting wire having a plurality of loops wrapped around the air core, the coil positioned between the first end and the second end of the air core. | 11-08-2012 |