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Re: capacitors



Original poster: Ed Phillips <evp@xxxxxxxxxxx>

" Usually, mica
caps are not good for Tesla work because they tend to overheat (power
dissipation factor >1%) and the dielectric is brittle and not self
healing."

	Something wrong there.  Good mica caps have a very low dissipation
factor (<0.001) and work great for RF as long as you don't exceed their
voltage/current/frequency ratings.  I have an 0.006 ufd 30 kV Sangamo
capacitor which works just fine with a 15 kV NST and suitable gap.  Wish
I had about 3 more.  Mica capacitors were used for spark transmiters for
many years with great success.

Ed