Dan P. Bullard has worked in electronics since 1976. He has traveled the world in an attempt to keep semiconductor devices flowing out of manufacturing facilities in the U.S., Asia and Europe. He has since given it all up to live on the Columbia River near Vancouver Washington where he enjoys doing as little as possible. Dan is an expert at electronics and Digital Signal Processing, and holds a patent in Smart Card/RFID testing. In 2015 Dan published a book on harmonic distortion called Distortion: The Cause Of Harmonics And The Lie Of THD. Dan has also been published in various electronic trade magazines as well as Houseboat Magazine. Dan has a YouTube channel that specializes in electronic topics and owns the domain www.danbullard.com where you can find many articles, tutorials, animations, and videos on electronic topics.