There are magnet chargers still in existence which plug into a regular wall outlet. BUT, you probably don’t need it. Magnets made since WWII simply don’t ever go bad. The story goes, they were invented for use in gyroscopes for the war effort.
Exactly my experience. After sending a considerable amount on a magnet charger, my results have been there is no benefit to recharging these early outboard magnets.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
