dont need to produce an explosion on an electronic circuit, but an explosion which can be controlled electronically, but carried in a 'mechanical device' (a mini-gun actually)
So I want a circuit in which an explosion can be setoff electronically.
you can use a dc power supply to charge a capacitor to few 100 s of volts, use a teigger spark gap to trigger this capacitor and dump the energy in a coil. you have toy high voltage spark.
hock