You can make your own sweet capacitor out of nothing more then tinfoil and waxpaper. I was able to roll one up that could hold a 430 volt charge without shorting. It also tested in at 49.5 nano farads... I would say its respectable given the materials and ten minutes it took to make.. One day I would like to make a bigger one and slide it in a old nalgene bottle and fill with mineral oil and see how that one holds up