Hello. I am trying to find a simple method of charging a bank of 330V, 120uF photoflash capacitors that are in parallel. I would rather not make an extremely complex circuit, as all I want to do is just charge the bank in a reliable and predictable manner. I was considering using a three-stage cockroft-walton voltage multiplier and wall DC to charge the bank. The only problem that I have with this method is that the charger will output 360VDC, which is around 8% above the rated voltage of the photoflash caps. 1- These are Rubycon caps, and I cannot find their tolerance anywhere online. Is 8% over acceptable for safe operation? 2- If this is not safe, is there a way to create a consistent voltage drop? I know that a resistor's voltage drop is time dependent, so I would rather not just put a resistor in series in case I leave the capacitors charging too long. In addition to the questions above, do I need to worry about the bank somehow "shorting out" the CW while charging and causing mayhem? Any other suggestions on how to make a decent charging circuit are always welcome. Thanks.