![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 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](https://c8.alamy.com/comp/KH1RJ6/this-large-belt-driven-high-current-dynamo-from-around-1917-produced-KH1RJ6.jpg)
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
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Amazon.com: Replacement Belt for AC/DC Dynamo (eisco Labs Part PH1245N8) Approx 6" ID : Toys & Games
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