dksoba
Member level 2
My friend is building a high voltage vacuum tube amplifier. Part of the design is some 6000uF (500V rating) Nippon caps. Four of these caps are in series. The network is charged to 1500V. My question is regarding the mount for these capacitors. Are the outside of the caps well isolated from the terminals, or are they connected to negative terminal in some way? I measured the resistance from the terminals to the case and it was basically "open", but there is some concern about whether the cap that's at the highest voltage will start arcing between the mount (at ground potential) and the case of the cap. As it is there is a 0.050" gap around the caps to the metal mount. The caps are held in position with silicon o-rings, but I think this is all unnecessary.
Please advise,
Matt
Please advise,
Matt