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N3ldan sent in his homemade cheap capacitor bank and recharger, he writes – “Here’s how to make a capacitor bank useful for many applications, ie a railgun, coilgun, RFID zapper, for $0~50 depeneding on what tools you have and how fancy you want the final product.” – Link.

Always be careful with these sorts of things of course.

Related capacitor projects:

  • Camera Coil-Gun – Link.
  • PowerLabs Electromagnetic Weapons! – Link.
  • DIY RFID-Zapper… – Link.
  • HOW TO – Make a RFID-Zapper – Link.
  • Build a RFID reader/capturer/cloner – Link.
  • The Railgun Blog, building a home made railgun… – Link.
  • Supercapacitor contest! – Link.