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Re: caps



Hello Robert, all


Original Poster: Robert Volk
<<mailto:smrtmny2-at-earthlink-dot-net>smrtmny2-at-earthlink-dot-net>


You wrote:
"Hi Reinhard,
Thanks for the info. I did re-build my caps using 4 layers of 6 mil in
between foil for a total of 48 mils. This gave me the .03 uF I was
after. I'm running a 15K/60ma NST. According to Mike, three of these
wired in series should be bullet proof. Why do you recommend removing a
layer or so from the cap?"


Well, somehow it slipped passed me that you will be using a single 15kV/60mA
NST. Removing PE layers will increase the capacitance (and lower voltage
rating, of course). By removing only one layer per side per single cap, your
"total" cap would still be able to survive the 15kV and you would have a
higher capacitance. This means more joules per bang. However, a 10nF
cap is about right for your 60mA NST. This should get you into resonace
charging, because Xl(NST) = Xc (cap). This will "cheat" your NST and allow
you to suck more current from it, than that 60mA faceplate value would let
you believe. In your case going any higher than 10nF won&acute;t help because
your 60mA NST won&acute;t be able to fully charge the capacitor. So your cap
construction IS fine the way you have now built it.

Sorry about any confusion I might have caused.

Coiler greets from germany,
Reinhard