Very cool with the water experiment. I have a small van DE Graaf from physics playground, I show to the kids at my daughter school once a year, two of the original onetesla drsstc coils based on eastern voltage minibrute and a medium sized spark gap coil. If you have a plasma or LCD tv that's broke you can run your van DE Graaf near it for some major sparks!
https://youtu.be/w79zECvAjVc
John cooper
Sent from my Samsung GALAXY S5™, a Cricket 4G LTE smartphone
-------- Original message --------
From: Matthew Sweeney <msweeney23@xxxxxxxxx>
Date: 08/24/2015 20:54 (GMT-06:00)
To: Tesla Coil Mailing List <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-tWeJ3Z0Uhttps://www.youtube.com/watch?v=ABKCGXuJDlwhttps://www.youtube.com/watch?v=eRsl6rs2cEohttps://www.youtube.com/watch?v=Hs3K0C1CeVkhttps://www.youtube.com/watch?v=O3CSO9fIQu0https://www.youtube.com/watch?v=o8ZHrSiVEXshttps://www.youtube.com/watch?v=v6KdIKDr4Tchttps://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
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>
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