John Williamson

John Williamson is a retired licensed master electrician and certified building official who has spent over 45 years as an electrician, inspector, instructor, and construction codes administrator. John has also spent the past 32 years consulting on, editing, and writing countless electrical projects for book, magazine, and digital publishers. After retiring as chief electrical inspector for the Minnesota Department of Labor and Industry in 2021, John has been working on his long list of workshop projects.

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