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Thordarson's Multiple Lighting Transformer
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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. These items, from Thordarson's Electrical Specialties catalog, are transformers for low voltage tungsten lamps. They are described as embodying "all the essentials of a perfect design, electrical, magnetic, and mechanical."
circa 1880-1945
Thordarson, Chester Hjörtur , 1867-1945
Publication Information
Physical Description
Collection Information
Copyright Information
W0129JF
WHi 28501
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High Voltage Test Transformers
circa 1880-1945
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...
Dash Coil with Switch
circa 1910-1919
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
circa 1910-1919
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
circa 1880-1945
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...
Rhumkorff Coils
circa 1880-1945
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...
Core Iron Press Room
circa 1910-1919
Speed presses stamp out core laminations for transformers at Thordarson Electical Manufacturing Company. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famous f...
