3mm bolts from a small Netzteiltraffo

So now my problem: I have testing jobs expanded a little transformer from a power supply. If I the cables of the secondary coil (I don't know obs is right! In any case, the output cables) connect to a 9V battery it flashes once kurtz. If I the cables alternately on and off, development in a row close many sparks.
 

 There is an electronic system that still faster automatically done for me? Found nothing in Google! My goal is the lightning to a small arc "sum it up". 30 kV? I think net! This is a very normal transformer, i.e. 230 V in and 9 V out? no electronics before? or is that a zeilentrofo, dan could be but not mim relay (to write that so!) nim dear n mosfet, the clutching high voltage cable jointing mer is quieter out, and keeping more