Re: A reVOLTing development.

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

Original poster: "Gerry Reynolds" <gerryreynolds-at-earthlink-dot-net> 

Hi Chris,

No one has asked what your NST is.  This is vital information to determining
how large of Cp you can charge.  If you are using a static gap, don't go
larger than 1.6*Cres.

Cres (nf) = 10^9/(2pi*line_freq*XLnst)

XLnst ~= Vout_rms/Iout_rms

Gerry R.

 >  > Today, I attempted to make an upgrade to my 4.5" coil
 >  > to get more "bang" from each discharge... this upgrade
 >  > consisted of re-wiring my MMC to use 2 strings of 14
 >  > caps (21.43nf), as opposed to the 1 string of 17 (8.82nf)
 >  > that I've been using.
 >  >
 >  > According to all the coil modeling programs I've
 >  > collected (including my own utilities), I only needed
 >  > to re-tap the primary to 9.5 turns to make it work with
 >  > the larger MMC... well, I made all the mods, including
 >  > re-tapping the primary, and instead of getting more
 >  > "bang", it just sat there with the main spark gap making
 >  > sputtering noises, and an occasional firing of the
 >  > safety gaps.
 >  >
 >  > Unless someone has a better idea, I'll be spending my
 >  > Sunday re-wiring the MMC to 8.82nf ... the streamers
 >  > were maxing out at 28" but it's better than no streamers
 >  > at all.
 >  > ---
 >  > Depressed in Chalmette, LA
 >  > CajunCoiler.
 >  >
 >  >
 >  >
 >
 >