The gaps seemed to be happy and fired well though. Perhaps with a higher number of individual gaps, some coilers say that this seems to be important for low power coils. Other experienced coilers say that in this power range 2 gaps are enough - so lets try and see. Additionally, if the gap between two pipes is to small, corrosion will make it even more narrow over the time and therefore decrease the breakdown voltage by a significant amount. I used 2 strings of 20 caps each for my 10kV eff -supply.
Size is approx.
Height of the caps is approx. I use an 1.8MegOhm bleeding resistor across each cap. The losses in the glass were approx. Protection circuits in SMPSs. Snubber and SCR commutating circuits.