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Re: Herrick's...Entertainment Machine
Original poster: "Kennan C Herrick by way of Terry Fritz <twftesla-at-qwest-dot-net>" <kcha1-at-juno-dot-com>
[KCH's responses interspersed]
On Fri, 18 May 2001 16:35:41 -0600 "Tesla list" <tesla-at-pupman-dot-com>
> Original poster: "R.E.Burnett by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <R.E.Burnett-at-newcastle.ac.uk>
> Hi Ken, all,
> Excellent photos of the SSTC. I particularly liked KCH_tcg2.jpg
Yeah, I couldn't resist doing that. And although I'm not at all into
mysticism I couldn't resist the book-title, either.
> It is clear that Solid State coils have "come of age" when you can
> sparks like that.
Perhaps so; but as I wrote, perhaps they're not as lo-o-o-ng as some
> The sparks do appear very similar to those from a classic spark gap
> coil. My SSTC seems to produce sparks which have less branches and
> more straight for some reason.
Is your excitation in bursts, or continuous? If bursts, then the longer
the burst, the fatter & more branched the spark.
Also my SSTC tends to flash over to
> primary if I force it to break out from a smooth toroid. Your
> primary turn would seem to eliminate this flashover problem ???
It's 2 equivalent turns, actually, although I have operated it with 1 and
with 3. And I suspect the problem has more to do with the voltage
difference between the two coils; my voltage difference is negligible--to
the bottom of the secondary, that is.
> Thankyou for sharing these details with us. I can see now how it
> difficult to re-configure the primary from the photo.
Yes, although in a later manifestation, if any, I will cut the quantity
of (ID-type) connectors about in half and that will make it easier.
However, the entire
> setup appears quite neat and portable as it is.
> Did you design and build the switching current-sources yourself ???
> I am
> very much aware of the problem of just using a bridge rectifier to
> the DC capacitors, so I have been looking at a similar solution.
Yes, it's my own quick-and-dirty design; an expert could no doubt do a
> I look forward to the availability of your plans, and will listen
> out for
> future developments in this project.
I'll let you know.
> Big up the solid state
> crew... ;-)
"Big up"?...is that a British-ism?
> -Richie Burnett,
> (Newcastle, UK.)
> > Original poster: "Kennan C Herrick by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <kcha1-at-juno-dot-com>
> > Finally I have .jpg images of my s.s. coil & am posting them to
> > http://hot-streamer-dot-com/temp/
> > as KCH_tcg1.jpg and KCH_tcg2.jpg.
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