RE: 7.5 or 5.0kv

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

Original poster: "Mccauley, Daniel H by way of Terry Fritz <teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>

The 7.5kV will give you better output as its high voltage and higher power,
but the 5kv will work well also.
A few of us have successfully built 4kV units which work extremely well (i
think Steve Ward has 13-15" streamers) from his
4kV/20mA.

The Captain




 > Hello,
 >
 > Attempt number two on the toroid went better.  Still rather
 > homely, but
 > everything is relative.
 >
 > I have another question for you guys:  Over the weekend I
 > wound a secondary
 > out of #32 heavy build, 13" of windings, on 2" PVC pipe.  I
 > want to keep
 > this small, so I plan to mount the whole pri/sec assembly on
 > one of these
 > 12" fiberboard circles that Home Depot sells for about two
 > bucks.  The
 > toroid is the previously mentioned disaster with measurements
 > about 9 by 3
 > 1/2.  I've collected a wide variety of transformers over
 > time, and was
 > hoping to use a 5kv/20ma ignition transformer that I robbed
 > out of a small
 > space heater.  Would this be acceptable, or would I be better
 > off with one
 > of the 7.5/30s?  I have looked thru the archives and tried to
 > search the
 > Tesla Ring (hard to find anything using keywords on the Webring), and
 > haven't come up with anything definitive.  This is my first
 > coil since I
 > was a kid (Model T coil driven; didn't work so well), and I
 > would like to
 > avoid screwing it up right off.  Looking for a few thoughts given the
 > secondary size.
 >
 > Thanks,
 > John Richardson
 >
 >