right ok i think i got my head around all of that lol, thank u for sll this, u are a real specialist, i am having difficulty getting each specific capacitor to the ones i see on your materials list you wrote for someone else. Not that I want to but more because i may have to but i wondered if its possible to compensate the uF and voltages and change them slightly to suit whats available, is that possible, if so then what is able to go up and down etc, cant seem to get any 10uF 35v but can get both 25v and 50v so can i use one of them instead or is it not that simple?