THIS book is exactly what it professes to be—a practical book for practical men—and is vastly superior to “Electric Light,” by the same author. The detailed instructions given in the first 42 pages, ...

A dynamo is an electrical generator that produces direct current with the use of a commutator. Dynamos were the first electrical generators capable of delivering power for industry, and the foundation ...

A replica of Henry Wilde's 1863 dynamo generator with magneto exciter. A two-part generator with an upper section (magneto) having a row of twenty horseshoe magnets with an armature mounted along the ...