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High Voltage Test Transformers
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Rendering of a Thordarson Electical Manufacturing Company product. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famous for inventing the electrical transformer in 1904. He was also known for his bequest of what was the core of the UW-Madison rare book collection and his estate on Rock Island in Door County. This item is from the Thordarson Electric Company Electrical Laboratory and Demonstration Apparatus catalog. It is described as "an oil insulated transformer for testing insulating oils, insulation of all kinds and general laboratory use."
circa 1880-1945
Thordarson, Chester Hjörtur , 1867-1945
Publication Information
Physical Description
Collection Information
Copyright Information
W0129DN
WHi 28516
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Rendering of a Thordarson Electical Manufacturing Company product. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famous for inventing the electrical transforme...
Shipping Room at Thordarson Electrical Manufacturing
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Workers get transformers ready for distribution in the shipping department at Thordarson Electical Manufacturing Company. Chester Thordarson was a Chicago inventor and manufacturer of electical ap...
Hand Winding at Thordarson Electrical Manufacturing
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Workers hand wind filament on transformers at Thordarson Electical Manufacturing Company. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famous for inventing th...
