I've attached a picture of Corning's proprietary cord for your Electromatic's model series. You can find them on ebay but they're usually overpriced. I've found most of my cords included with thrift store pots, which usually cost less than just a cord plus shipping on ebay. Earlier models of the Electromatic used a standard percolator cord. You can spot those types by the stainless steel trim plate that surrounds the faceted indicator light at the top of the heating assembly. However, those assemblies will not interchange with later types like yours.
Plain white is a less common Electromatic design than those with a pattern.
I don't think your pot would convert well to a stove-top use. Even if the stove-top stem and basket fit into your pot, you'd have a big hole at the top of the handle and the lid may not snap in securely.
Stove top pots turn up at thrift stores more than their Electromatic counterparts, so it that's what you'd prefer, just keep an eye out.
If you do get a cord, the first step would be running a cleaning cycle. Fill with water to the 10-cup mark in the empty pot, insert heating & basket assembly, dump a good teaspoon or so of dishwasher detergent in the basket, place spreader on top, snap lid on, and plug it in. If you don't have the trivet that came with the pot, place it on a heat-resistant surface or a potholder.
