magnifier spark length

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Original poster: "colin.heath4 by way of Terry Fritz <teslalist-at-qwest-dot-net>" <colin.heath4-at-ntlworld-dot-com>

hi all
         iv been off list for a while but im now looking to get on and build
more coils!been playin with fusion.
ok heres my question.
im looking to build a magnifier but my present equipment dtermines some of
the parameters for me
iam going to run a 50nf tank cap with a 10kv custom wound transfromer
capable of say 4-5kva apart from that the rest is open to change i have an
asrsg
and other bits and pieces
what spark length can i expect with these components if i maximise the rest
of the design
if this question can be answered
many thanks
colin heath