Hello everybody.

At the moment I'm looking into the neon craft. I've got everything figured out except for 1 transformer used in a process called "bombarding". It's a process in which a almost vacuum glass tube is bombarded with a very high voltage for the sake of cleaning it.

The instruction videos I have seen all use a pole like transformer (USA (I'm from Europe)). One transformer used is a 12.5Kva/20KV transformer, connected to 2 120V lines (USA). One video shows the current gauge when bombarding (0-400mA).

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So my question:

Are there any modern alternatives to such a transformer (heavy noisy pole transformer)?
If a high voltage, low current is drawn from the secundary side, does this mean primary has a very high current? If so does this mean that the transformer should be connected to a 3 phase net (Europe) instead of regular 230V AC and 10mm² +- wires should be used?

I know how a transformer works in theory, but I haven't really yet used one for real. Also, the bombarding process is kind of specific.
I hope that my questions are somewhat clear.

Kind regards from Belgium,
Andreas