Buyenlarge 0-587-33949-7-G1624 Wilde s Dynamo Fine Art Giclee Print 16" x 24"

In 186305 Dr. Wilde invented the first separately excited dynamo, demonstrating that the feeble current from a small magneto-eletric machine could be made to produce currents of great strength from a large dynamo. Wilde's dynamo weighed 4.5 tons, and when driven at 1,500 revolutions per minute. The current fused 15 inches of round iron 25 inches in diameter with an expenditure of about 10 horse power. The is machine was used for Electro plating purposes depositing 20 ounces of silver per hour.