This large belt-driven high-current dynamo from around 1917 produced 310 amperes at 7 volts DC. The huge complicated commutator (left) was needed to handle the large current. Dynamos are no longer used due to the size and complexity of commutators needed for high power applications.

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Photo credit: © FLHC 5 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ancient, antique, artifact, bygone, educational, heirloom, historia, historic, historical, history, information, informative, knowledge, learning, nostalgia, nostalgic, rarity, relic, studies, vintage