Around the time that dryer was sold, lots of domestic 230V dryers were hardwired into the house grid.

If I were you and wanted to try saving that dryer, I would spring for the 65 bucks to have a qualified service person come to your house to make certain an appliance wasn't going to cause a fire. Safest option unless you're skilled enough to open it up to know exactly what part is malfunctioning.

BTW, I think the DE702 was one of the best HOH dryers Maytag ever made. That's not saying that much but I love mine. Don't use it, but I love it.