Re: Coil Pictures :-)

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 11/8/02 10:27:09 PM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:

Winston,

My formula only works correctly if the proper data is used.
Those H&R transfomers can output more than their rated
power under certain conditions.  You may be thinking of
Alan Jones's coil which gives excellent results using those
transformers.  I think he got 113" sparks or something without
a doubler circuit.  He uses two transformers with the outputs
in series, and a 120 bps sync rotary gap.

John


>Hi Malcom, Bart, All.
>
>     Well, so it does :-)).  I was confused between John's formula, and the
>report that someone had gotten 9 foot sparks out of the same two xfmrs.
>I think the guy was using a huge cap (0.15 or larger) and a SRSG.  The
>cap was around the resonant value (0.16 uF), I think.  Even with my 0.1
>uF cap, the voltage would instantly rise to as high a value as I dared
>to let it.  My system probably ran at a peak firing voltage of 10-11 kV,
>for a 5 joule break size.
>
>     Anyway, thanks for clearing up my error.  I feel better about my
>coiling ability now ;-)).  4 kVA, and 10 foot (hopefully) sparks are on
>the way :-))).
>
>Have fun,
>Winston K.
>