تماشای ویدئو Cheap easy to build Joule Ringer. Runs on 2uA از آی-ویدئو
How to build a super efficient Joule Ringer using off the shelf parts. Check my website for parts list and links: http://laserhacker.com/LowPowerJouleRinger.html
LaserSaber online store at: http://teslamaker.com/