Fine tuning

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Steve Zeitler" <zeitler-at-verizon-dot-net> 

hello everyone
i haven't been on this list for a while.
I built a coil in '96 which wound up at the Museum where I work . It has 
worked OK but was never a stellar performer.
Recently It fried 1 of 2 homemade power transformers. (they were 9kv -at-150ma 
+/- if not ballasted. They were connected  in series. I was able to obtain 
2 "potential transformers" from the local power company 8.4kv at 1500va 
each. These are a good scrounge right? I will run these in series also.
the tuning was set during construction based on signal generator and 
o'scope testing. Close but not right on I'm sure.
My question is, how do I fine tune this machine  to get best performance 
out of it? surely there is an article someone can refer me to.    Thanks
                                                       Steve Z
                                                The Franklin Institute
                                                       Philly