Thicker latex can be found as 'maximum resistance' exercise bands from
wallmart $8 a pack. I use them exclusively and they work extremely well,
better than any other I have tried.
Matt
On Tue, Aug 25, 2015 at 9:21 AM, John Nelson <ybnormal@xxxxxxxxx> wrote:
>
> Thanks for sending those. You have given me some ideas that I can work
> on. Instead of bowls for the sphere I use garden gazing balls. They come
> in many sizes and look great, but the same old problem of the opening is
> there. I can see that you have tried to cut down on the corona like I have
> using rings. I tried rings made out of copper tubing and plate aluminum
> and still get corona discharge. I have tried to turn the opening upward
> like the ones you can buy, but have not been successful. The main problem
> is that the gazing balls are made out of stainless and the professional
> ones are aluminum. Aluminum is much more malleable and is easy to shape.
> There is a company that will form any size ball up to 36 inches and will
> also form the opening that is turned upward. I contacted them and they
> only want $4000 to make one. Might as well be 4 million to me. I would
> make a nice display though. I keep on entering the lottery, but so far I
> have only won one dollar. 3999 to go. As far as the belts, I have been
> using vinyl strips that is used in upholstery. Vinyl does not work on
> rounded rollers as I will not conform to the round shape. It is too
> stiff. I got some exercise latex straps, cut them to length, fastened the
> ends together and tried to run them, but I think the material is too thin
> as it did not work. I could use some heavier latex, but I don't know where
> to get it.
> As far as Tesla coils are concerned, I have made several, the first one in
> high school back in the 50's. I got a kit from Tesla works, (Alan) and it
> works OK, but I wanted bigger. I then got a solid state one from Dan
> McCauley (Eastern Voltage Research), but it does not work and they can't
> fix it. $2100.00 down the tubes. It now just collects dust in my garage.
> I contacted the man in Oklahoma that built the very large one he runs
> outdoors, but he won't release any information on how it is built. You can
> see it run if you search "very large Tesla coil".
> I have a larger VDG in partial assembly, but am waiting on how to solve
> the belt walk issue and the corona issue as well. A search for thicker
> latex is next, I guess. I can machine any parts I need as I have a machine
> shop.
>
> Thanks
>
> John
> > -----Original Message-----
> > From: msweeney23@xxxxxxxxx
> > Sent: Mon, 24 Aug 2015 20:54:02 -0500
> > To: tesla@xxxxxxxxxx
> > Subject: Re: [TCML] Seaching for Mike Delosier
> >
> > Here are some videos from my older models. I did build a six foot model
> > with a 14inch sphere running at 10x power delivery. It was a beast but
> > caused me much trouble due to extremely high electrical field potentials
> > around the sphere opening. I used steel Ikea bowls and they just wanted
> > to
> > buckle when I radius them. I have made a few corona rings that help, but
> > I'm not so good at joining the two ends and soldering a nice smooth joint
> > =(
> >
> > All my devices are completely home built including PVC form (well I
> > purchased the PVC), belts, rollers, corona tubes, comb assemblies and
> > various discharge rods. Of course the motor and hemispherical bowls were
> > items I could not make myself. Note all devices are extremely quiet- I
> > used
> > high quality bearings everywhere and drill press for accuracy.
> >
> > My 6 foot high-power version was insane throwing off continuous charges
> > up
> > to 40 inches in length which seems way more than possible using a 14inch
> > sphere.
> >
> > I have cannibalized my large generator and am building two 3 foot
> > dual-pole
> > positive/negative generators in an attempt to 'double' the voltage
> > gradient. We shall see!
> >
> > Next project is a new Thunderstorm built very high quality and full
> > self-contained re-pumping. After that it's either a giant Van De Graaff
> > or
> > a tesla coil. I can build belts up to 6inches wide and many 10's of feet
> > long, but I cant yet built large spheres over 14inches =(
> >
> > https://www.youtube.com/watch?v=Fb-tWeJ3Z0U
> >
> > https://www.youtube.com/watch?v=ABKCGXuJDlw
> >
> > https://www.youtube.com/watch?v=eRsl6rs2cEo
> >
> > https://www.youtube.com/watch?v=Hs3K0C1CeVk
> >
> > https://www.youtube.com/watch?v=O3CSO9fIQu0
> >
> > https://www.youtube.com/watch?v=o8ZHrSiVEXs
> >
> > https://www.youtube.com/watch?v=v6KdIKDr4Tc
> >
> > https://www.youtube.com/watch?v=em67iXD5-ms (voltage specified is
> likely
> > incorrect)
> >
> > https://www.youtube.com/watch?v=I37C5qWRi3A (voltage specified is likely
> > incorrect)
> >
> > https://www.youtube.com/watch?v=cQTRKiYsCEc (just for fun).
> >
> > Any questions please let me know, I'm certainly no expert but have
> > learned
> > a few tricks to provide excellent charge rates, smooth operation, and
> > huge
> > reduction in expensive (my 6ft long 2ft wide belts are only $3 each and
> > work better than any other I have tried).
> >
> > Thanks!
> >
> >
> > Matt Sweeney
> >
> > On Sat, Aug 22, 2015 at 9:54 PM, wt5y <wt5y@xxxxxxxxx> wrote:
> >
> >>
> >>
> >>
> >> Cornel dubilier 942c20p15k-f .15uf 2000v caps can be had $4.99 ea
> >> from
> >> easternvoltageresearch.com
> >>
> >> Sorry don't know mike. Someone else may.
> >> If you don't mind can I see some of the van DE Graaf you've made ie
> >> website,youtube? And what are Kelvin thunderstorm project, will Google
> >> it
> >> but never heard of it.
> >>
> >> John cooper WT5YWt5y@xxxxxxxxx
> >> Sent from my Samsung GALAXY S5™, a Cricket 4G LTE smartpho
> >>
> >> -------- Original message --------
> >> From: Matthew Sweeney <msweeney23@xxxxxxxxx>
> >> Date: 08/22/2015 16:10 (GMT-06:00)
> >> To: tesla@xxxxxxxxxx
> >> Subject: [TCML] Seaching for Mike Delosier
> >>
> >> Hello, I recently joined this mailing because I didn't know it existed.
> >> I
> >> don't make tesla coils any more but I produce large Van De Graff
> >> generators
> >> and simple kelvin thunderstorm projects to amuse myself and keep my
> >> nephews
> >> amazed.
> >>
> >> Anyway I visited my local Axe-MAn today and learned that they have a
> >> customer named Mike Delosier who lives in minnesota and has some
> >> impressive coils.
> >>
> >> I am hoping very much to contact Mike but I have not been able to find
> >> his
> >> e-mail address. I don't see any recent posts with his name so maybe he
> >> is
> >> not a member anymore?
> >>
> >> So, if anyone knows him, I would be delighted to send him an email.
> >> Alternatively he can send ME an e-mail as to be less intrusive:
> >> msweeney23@xxxxxxxxx
> >>
> >> I did build several decent coils over 20 years ago with home made plate
> >> class capacitors and a horribly inefficient stationary spark gap. I
> >> didn't
> >> have any protection circuitry in place but somehow my HV transformers
> >> survived, however my capacitor eventually exploded.
> >>
> >> Now I have three perfect 15,000v 250ma NST's just sitting waiting for a
> >> purpose - so I think it's time to start planning a new build. I have
> >> never
> >> built a proper solid state coil and am considering this option. But a
> >> traditional rotary spark-cap coil with high-voltage capacitors would be
> >> much less effort. The secondary will be 5 Feet and using enameled magnet
> >> wire.
> >>
> >> I'm looking for good sources of (cheap) high voltage capacitors and much
> >> info on recent developments in the field. I especially am interested in
> >> inductor usage to prevent spikes back to the NST. Also I need some
> >> advice
> >> on secondary wiring cable is there a preferred variety for recent coils?
> >> Ill use copper tubing for primary. I may also build my own rolled
> >> capacitors but I'm thinking obtaining newer HV caps in a bank may
> >> actually
> >> be cheaper.
> >>
> >> If there other members in the Minnesota/Wisconsin I would also like to
> >> connect. I'm desperate to find a powerful coil to blow my nephews minds
> >> =)
> >>
> >> Thank you for any help you can provide. I'll be reviewing the lists
> >> looking
> >> for new info also but direct contact for any suggestions would be
> >> welcomed.
> >>
> >> Regards,
> >>
> >> Matt Sweeney
> >> _______________________________________________
> >> Tesla mailing list
> >> Tesla@xxxxxxxxxx
> >> http://www.pupman.com/mailman/listinfo/tesla
> >> _______________________________________________
> >> Tesla mailing list
> >> Tesla@xxxxxxxxxx
> >> http://www.pupman.com/mailman/listinfo/tesla
> >>
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
>
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