How to Build a Magneto Magnetizer

If you have a particular interest in magnets, you can build this simple device to create new magnets and recharge weak ones. Although specifically designed to recharge magnets used in engine magnetos, this device can be used for producing or restoring magnets in a great variety of shapes and sizes so long as they are made of alloy steels.
This is a relatively simple device. Only ordinary mechanical skills are required to build it. The metal core however is of very heavy steel and some machining operations may be required.