AC Tester

Posted on April 24, 2010 by D.Mohankumar

This circuit can sense the presence of AC voltage in mains wiring without making contact to it. It can detect the 50 Hz AC hum from a distance of 2 feet from the wire.Circuit in wordformat

AC TESTER

About D.Mohankumar

D. Mohan Kumar M.Sc., M.Phil, is the Former Head of the Dept. of Zoology, Govt. College for Women, Trivandrum, Kerala, India, Former Member of Academic Council, University of Kerala and Former Member of Board of Studies in Kerala, Calicut and Kannur Universities. He is the Subject expert of Biology in Talent Spire team for Entrance exams. He is an avid electronics enthusiast and has been designing circuits for the past 30 years. In this period he has supported many electronics/electrical engineering students in their final year projects. He is a regular contributor to Electronics For You magazine which is South Asia’s largest circulating electronics magazine published from New Delhi.
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