half baked transformer idea

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I had an idea the other day using a step up transformer to step up an initial impulse and using a spark gap to keep the pulse circulating in the transformer through a resistive load.  It may have no base in reality but I have not been able to test it yet properly, so I thought I would just share my idea here in the half baked forum.  The turn ratio would have to be something incredible like 500 turns in the secondary to one turn in the primary, and the capacitor would need to be of high voltage for this idea to make any sense at all.  Well, even if this wouldn't work at all I would still like an explanation as to why so I could continue conceptualizing different ideas.