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Re: Spark gap construction

Original poster: "S&JY" <youngsters@xxxxxxxxxxxxxxx>

Black Moon person,

If you are using an NST powered coil, then PVC should work OK.  Gaps usually
work better with some air flow through the gaps (e.g. from a muffin fan),
and this will help keep the pipes from melting the PVC.  If you are using
MOTs or a pole distribution transformer, then the pipes may get so hot that
they melt the PVC.

Use a pipe cutter, not a hack saw, to cut the pipe, and you will have a
natural inward "crimp".

Yes, pipes will make a decent safety gap.

By the way, do you have a name we can call you?  Black_moons person" just
doesn't make it . . .

--Steve Y.

----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, November 28, 2004 4:08 PM
Subject: Spark gap construction


> Original poster: "Black Moon" <black_moons@xxxxxxxxxxx>
>
> Iv seen alot of spark gaps using common copper pipe, and was wondering if
> PVC pipe would be a suitable support for them, also, do they tend to arc
> near the edge of the pipe? I was wondering if it might be benifical to
> crimp the ends slightly. As for the safty gap, Should i try and find some
> balls? or will 3 pipes do just as well? I assume I set the safty gap by
> running the NST alone with no tesla coil and opening the gap till it just
> barly arcs over the gap?
>
>
>
>
>