John Jenkins is President & CEO of the Spark Museum of Electrical Invention, located in Bellingham, Wash¬ington, John is a long time collector of early radio and scientific apparatus, and a retired engineer and Microsoft executive. He is a member of several professional associations including the History of Science Society, The Society for the History of Technology, and the IEEE. His interests include the history of science and technology, electronic and computer related technologies, and over 40 years as a collector of early radio and electrical scientific apparatus. John's personal collection includes many one of a kind items dating back to the 16th century. John lectures and writes on topics related to the history of technology, and in his free time he can be found in the mountains of the Pacific Northwest, hiking with his dog Charlie.