Stellarator

The Stellarator fusion reactor was invented in 1951 and predated the Tokamak.

The Stellarator concept fell out of fashion as activity on tokamaks increased but has recently regain interest. There have continually been various stellarator in operation around the world and currently the Wendelstein 7-X reactor is the world's largest stellarator device.

More detail are given on the page: Stellarators .