Re: [TCML] Sphere Topload Coil

[bartb <bartb@xxxxxxxxxxxxxxxx>]

Hi Adam,

I built this same gap style for a small coil and it worked fine. I used 
a fan out of a microwave and coupled it to the pvc. Since this was low 
power I wasn't worried. I'm surprised your gap could handle better than 
2kva even the the shop vac. Interesting.

Bart

Yurtle Turtle wrote:
> I've run mine at 5 - 6 kVA with no problems:
>
> http://www.hot-streamer.com/adam/shopvac_gap.jpg
>
> I hook it up to a Shop-vac and a variac. It prefers
> pressure over vacuum. None of the fittings are glued,
> which allows me to adjust the spacing easily.
>
> Several years ago, during a Halloween run, I believe I
> cranked it up to 10 or so kVA:
>
> http://www.hot-streamer.com/adam/bigass_coil/Meltdown.jpg
>
> It didn't like that, though the coil ran great until
> the solder and PVC melted.
>
> Adam
>
> --- david baehr <dfb25@xxxxxxxxxxx> wrote:
>
>   
> > what size pipes ya using on yours ?    mine are 1"
> > dia, 'bout 4" long   with two good sized muff fans
> > for cooling,
> >   
> >      it will stay stable for long runs at 3kva
> > ,.....I used 2" dia in the past,...although they
> > stay cooler, the smaller dia seems to perform
> > better.......
> >  
> >     
> > > Date: Thu, 21 Feb 2008 19:08:38 -0800> From:
> > >       
> > bartb@xxxxxxxxxxxxxxxx> To: tesla@xxxxxxxxxx>
> > Subject: Re: [TCML] Sphere Topload Coil> CC: > > Hi
> > David,> > I'm musing here as I haven't built a
> > pressurized gap.> > I personally love my high cfm
> > vacuum RQ style cylinder gap using large > segments,
> > which I can run near 3 kva with just fine.> > Take
> > care,> Bart> 
> >
> >     
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