Re: LTR vs. STR for pigs was Re: PFC Question

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

On 11 Nov 2005, at 21:06, Tesla list wrote:

> Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
>
> Opps, I slipped a decimal point.   48 inchs with 125 watts = Freau
> factor of 4.29.  This is remarkable and deserves recognition and query
> into whats the secret is.  (no wonder I was confused).
>
> Gerry R.

I have to say right here that being too good to be true means that it
would have been. First off, the breakrate was *assumed* to be be
2Fmains. Scoping the coil some years later revealed that it was
actually going as high as 4Fmains at times. While the gap religiously
fired at 5kV at low rep using a DC supply I would not like to
guarantee that it fired at that voltage under running conditions.
Some recent runs were done with the gap set to fire at between 7 and
8kV and it put out about 5'. Measurements several years ago showed it
was approaching the 1.7 factor. I think that old post of mine should
be consigned to the scrapheap of history. I had long forgotten it and
I think everyone else should too.

Malcolm

> >Original poster: "Dmitry (father dest)" <dest@xxxxxxxxxxx>
> >
> >as for the "freau number" - reading the archives i found the
> >absolutely champion of all times - of  course it`s Malcolm Watts:
> >
> >http://www.pupman.com/listarchives/1996/may/msg00090.html
> >
> >"The coil I fire at work has been putting out 4+ footers with a PRF
> >of 100 (1/mains half cycle) on just 1.25 Joules per pulse (about a
> >third of what I had previously thought)."
> >
> >4.29+
> >yeah, you don`t need any mega-joules - you just have to be a
> >mega-coiler :-D
> >so you guys all suck again :-)))
> >
> >-----
> >The solution to no primary hits lay in getting rid of the primary!
> >This is no joke either. 20-06-96 (c) Richard Hull, TCBOR
> >
> >
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