re: Capacitance of domed topload

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

Original poster: "Peter Lawrence by way of Terry Fritz <teslalist-at-qwest-dot-net>" <Peter.Lawrence-at-Sun.COM>

Dr B,
      depends on how much accuracy you need. First order calculations would
be that you have a blob 715mm diam x 637.5mm high, which will probably
has the same capacitance as a 715mm diam sphere if your purpose is simply
to get an approximation to where to start tuning your TC.

If you need a closer approximation then get the sources to ETesla6 and
modifiy them to handle the cylinder + dome and you will get a "very close"
approximation to the capacitance of the topload plus the secondary coil
and a "very close" approximation to the Fres of your secondary. (I think
Etesla6 often gets within 1% of the measured Fres).

-Pete Lawrence.