I made some SW caps out of champagne bottles, which are a poor choice as the glass contains iron. They worked well for a long time, although if you look at the picture you can see that one is no longer connected. This is because one day arcs came spouting out the side, and it arcs over now as soon as voltage is applied. These caps have been used and abused in a fashion that would have killed any other cap. and they were almost free. These caps ran a coil powered by a 15kV/120mA NST for an hour! Sure they were warm and bubbling, but they didn't fail. I have collected eight HDPE hydrogen peroxide bottles that I intend to make into a Geek style bucket cap. While less than ½ the volume of the champagne bottles, they measure 50% more capacitance. HERE is a link to a nicely made SW cap bank. Looks really well made, but heavy to lift! Check out the rest of the site too. Back to INDEX. Home About Us Tesla Coils The Hydrogen Fuel Cell Robot Project Chronicles Classes - Mini Sumobots Miscellaneous Experiments - Acoustic Laser - Coil Gun/Gauss Cannon Miscellaneous High Voltage - Jacobs Ladder - Marx Generator - Lightning Pendulum - Flyback Fun Electronics Stuff - Velocity Indicator - Atomic Nixie Clock - IR Remote Module - Sharp GP2D12 Sensor Electricity & Magnetism - Mag&Elec 101 - Worlds Easiest Motor - Slow Motion Magnets - Galvanometer - L.E.D. Blinker - Electromagnet - Simple Speaker - Simple Oscilloscope - Simple Switch