Re: Secondary Dilemma

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

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi CJ,

My 4 inch secondary is 26 inches long.  High ratios don't hurt anything and
a taller coil prevents arcs to the primary.  50 inches is a little extreme
IMHO.

http://hot-streamer-dot-com/TeslaCoils/MyCoils/SmallCoil/SmallCoil.htm

Cheers,

	Terry


At 11:57 PM 11/24/2001 -0800, you wrote:
>I have read that it is better to keep the ratio of width to height low, like
>1:2 - 1:4. I knew this when I was getting into my project but I couldn't
>find a wider pipe so I ended up getting a 4 inch pipe. I made the primary
>which looks really nice in my opinion  I didn't want to make a site, but you
>can see some of the pictures here http://members.home-dot-com/fredmoore/ (I used
>my new toy, a Sony DSC-F707 digital camera) to take them. Anyway, so I have
>a 4 inch coil but I have not finished winding it yet. Right now I am bout 16
>inches in to it. I am winding using 22 gauge heavy insulation wire and
>polyurethane if that makes any difference. The rest of my coil (as of now)
>is 2x 9kv 60ma NSTS for a total of 120 ma. I have a Maxwell pulse cap (wish
>I had a MMC) that's rated at 35 kv .03 uf. The primary is 3/8 copper piping
>with 3/8 spacing, on all lexan form :-). So my question is basically should
>I continue wrapping and have a ratio of 1:5 or higher (could make it as high
>as 50 inches) or should I stop now with the 16"?
>
>Thanks,
>CJ
>