A simple dynamo model to distinguish AC from DC, mounted on a wooden base. Two bulbs are provided, for AC and DC. The model is hand-driven, and when operated the AC bulb flickers to indicate alternating current while the other bulb glows steadily to indicate direct current.

We are manufacturers and suppliers of the Demonstration Dynamo Model (A.C. and D.C.), serving Algeria, Argentina, Australia, Bahrain, Bangladesh, Belgium, Bhutan, Brazil, Cambodia, Cuba, Cyprus, Denmark, Ecuador, Egypt, Ethiopia, Finland, France, Georgia, Germany, Ghana, Hungary, Iceland, Italy, Japan, Jordan, Kenya, Kuwait, Malaysia, the Philippines, Tanzania and Uganda.