Static gap
Brian built this Richard Quick type static gap. There are 10 copper tubes spaced around the inside of a piece of 4" dia drain pipe. Each one of the pipes is spaced 0.2mm and the pipes are held in place with plastic padding and each also has a self tapping screw through the drain pipe and in to the copper so the high voltage wires can be attached and this also lets us vary how many gaps we can use. 
The gap now has a base unit made out of a thick piece of plastic this lets air circulate and helps to keep the gap cool (well almost) the spark gap took some time to build the hardiest part is keeping the copper pipes the correct distance apart. 
Below This is another Static gap that Brian built, it only has one gap and was used in series with our high speed RSG
Copy right 2021