Keller

Learn about the history and manufacturing of the products of David W. Dieter's Cherryville, Pennsylvania, foundry and machine shop.

Hear the final part of the Coolspring Power Museums's Marinette Engine story covering the origin of this particular engine and where it worked before CPM.

Learn what really happens when you remove the magnet from a magneto as well as why we use current to measure the power in a magneto.