Jorge: > My personal experience with glass plate capacitors is > that... I use a glass cap on my small coil... 20 12"x12" Heavy AI foil plates 22 16"x16" .25" thick glass dielectric plates all in a 18"sq. tub of el cheapo motor oil (Thrifty Drug Store) I charge this with 9kV -at- 400 milliamps and it works just fine for what it is. Heavy, messy, inefficient, etc.... ...but cheap... ...Jeff