Hi Matt,
Please give some more info.
Working with spark gaps is a little known
and specialised field.
What sort of frequency are you trying to use?
Sometimes the spark can be contained within a
bottle, some gasses give better results.
What materials are you using for electrodes?
the electrodes can badly affect spark stability.
What sort of power output are you aiming at?
Sometimes magnets can be used to 'flare' the
spark, and help with cooling.
I have heard it is possible to construct an
assembly that can produce a self-sustaining
tuned spark.(without conventional electronics)
Please post back with more info on what you're
assembly is supposed to do.
Regards, John