Original poster: "Gerry Reynolds" <gerryreynolds@xxxxxxxxxxxxx> Hi Robert,My first coil was using a 4.5KV 20ma plate transformer and it produced 6 inch arcs. I think this tranny will work in a small coil.
Gerry R
Original poster: "Robert Hanford" <pomnept@xxxxxxxxxxx> Hello, Any input much appreciated. I am advising a friend on his daughter's science project. He got a 3kv 20ma NST for free and I wonder whether they are likely to be successful in making a very small coil. I have never used such a small power supply. Many thanks, Robert Hanford