In 2009 I was working for Enertech Consultants, a company that specializes in EMF (Electro Magnetic Field) testing equipment. They also helped produce educational materials for the EPRI (Electric Power Research Institue) group. These were illustrations intended for one of their DVDs.
These are all vector illustrations made with Inkscape.
Turn of the century gas street lamp.
Edison's light bulb.
Early era capacitor.
Early era transfromer
