So if a voltage multiplier were built to increase the voltage, let's say 25v capacitors are used at 10 steps to get a potential of 250v, can the end voltage be manipulated by changing the input voltage, so if a 3v supply were used the end voltage would be 30v and if a 12v were used the end voltage would be 120v?

 

If you mean a Cockroft-Walton multiplier, then yes. In theory anway.

 

Lots of losses, esp. with low input V.

 

Thanks, I just read up on them and only used 3v as an example and understand that each step would need to take into account forward voltage loss, so yeah, at 3v, that isn't working with a lot of head room, but if a 12v or 24v supply were used, then it shoudln't be as much an issue (proportionally), correct?

 

I think that you have it.