Connect transformers together in series?
I've got 4 neon sign transformers, each outputting 12 000V at 30mA. I want to connect them together in series to increase the voltage to 48kV but I just wanna check on the right way of connecting them for safety reasons. The input for all transformers is the standard 220V AC.( I need such a high voltage for a fusion reactor) (the pic is one I found on google that's why the input voltage is 120)