Re:

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

Original poster: "June Heidlebaugh" <rheidlebaugh-at-desertgate-dot-com> 

Chris:  The geek group has the easiest way to get your capacitor. I use oil
and poly capacitors. They are a lot more trouble, and only a little cheaper.
The major problem is oil tight containers to house them. I like them, but
they are no short cut.     Robert   H

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, November 15, 2003 9:15 AM


 > Original poster: "Chris the great" <downnessisgoingup-at-hotmail-dot-com>
 >
 > I have done some work on my coil since I have last posted, and I have
found
 > my problem.  I think my tank cap is WAY to small for my MOT power source,
 > which will soon be a 4 MOT stack.  I have calculated (from
 > http://home.earthlink-dot-net/~electronxlc/tccalc.html) that my tank capacitor
 > should be 200nF at 8kV, 650mA, not 13nF.
 > I would like to make sure that this is indeed a good tank cap size, so I
 > don't go and make a huge poly capacitor for nothing (actually 3 in
 > parallel).  Or would another type of capacitor be easier to
transport/make,
 > or cheaper, or better?
 >
 > Needless to say I will need a very large topload, I was thinking about a
40
 > inch toroid on top of a 24 inch toroid, for a total secondary capacitance
 > of 77.6pF, with an inductance of 19.6mH.
 > My primary inductance will be very small, however I have found that a
lower
 > primary inductance produces brighter sparks that are slighly longer.  I
 > will have 2 series static sucker gaps, until I can get a rotary gap.  More
 > on my coil here
 > http://hot-streamer-dot-com/chris/4inchcoil.html
 >
 > Are these good values for my 4.5 inch coil?  I expect a major increase in
 > performace over my 12 inches of spark so far, but will they be around
 > optimum values?
 >
 > Thanks!
 > Chris
 >
 >