Replacing Single Capacitor with a MMC

Zorba, Mon Aug 06 2007, 08:10AM

For my first tesla coil I'm working from designs from a book, however in the book they use a single capacitor and I was hoping to substitute it for a MMC. The book suggests using .005mfd/10KVAC capacitor so could I just get ten .15mfd/2KV capacitors and set those up in a capacitor bank and substitute that for the single cap?

If not how would I determine the quantity of capacitors that I need and also what would be the best ones to get? If it's important I'm using a 6.5KV/20ma transformer.
Re: Replacing Single Capacitor with a MMC
Sulaiman, Mon Aug 06 2007, 08:53AM

You should use an mmc as it's reliable/proven/economical

For 6.5kV 20mA you'd be better using 10 to 15 nF (0.01 to 0.015 uF)
which is (10 to 15) x .15mF giving a nice safety margin for voltage ratings.
Re: Replacing Single Capacitor with a MMC
Zorba, Mon Aug 06 2007, 09:50PM

Thanks for your help
Just to double check so that I don't end up buying the wrong thing, would these work?

five of these:
Link2

or ten of these:
Link2
Re: Replacing Single Capacitor with a MMC
sparky, Fri Aug 10 2007, 04:29AM

I've always been one to push the 942 series of caps from CDE. They are very tolerant of overvolting and survive VERY VERY nicely on pulse discharge curcuits!