From:Dave Hennessey Electronic:dave -A- toyhouse.org
Subject:RE: RE: RE: ST 165 Fuse Date:Tue Nov 30 18:27:58 2010
Response to:14833
Perry,

Thanks for the definitive fuse answer.

I wonder how many people realize that their magneto-equipped Hummers, Pacers, Scats, Rangers and Bobcats all run on AC - Alternating Current?

A generator's armature develops AC, but the commutator and brushes allow us to pull DC out of the generator.

A magneto is really a generator that uses permanent magnets instead of electromagnets (field coils). Also, the typical magneto is built backwards from a generator - it has a rotating magnet and stationary output coils. Since it doesn't have a commutator or brushes, the output is AC.

Dave