half filter?? and what all I need before primary circuit

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Langer Giv'r" <transworldsnowboarding19@xxxxxxxxxxx>

Hi, i was wondering instead of using the entire terry filter design, 
could i just use the MOV's, safety gap, and resistors,  and leave out 
the highly expensive caps and still get a relative ammount of safety? 
if not... what is the best way to get protection for my 9KV30mA  " 
cheaply and effectively "
what is all you need basically before you send off the power towards 
the tank cap and spark gap?  like filter / RF chokes / safety gap?  i 
am still a little confused and before i buy the parts (I am poor) i 
would really like to know what all to buy.   Thanks a million!
Daniel from Canada