Museum Artifact: Thordarson Amplifying Transformer, c. 1920s
Made By: Thordarson Electric Manufacturing Co., 500 W. Huron St., Chicago, IL
“The Thordarson factory is more than an assembly plant. All phases of transformer manufacturing, engineering, core and case stamping, coil winding, impregnating, enameling, assembly, and testing are done under one roof. . . . It has grown from a small one-man shop to a place of leadership in the field—the largest organization in the world devoted exclusively to the manufacture of transformers.” —Thordarson Electric Sound Amplifier Manual,