RE: [TCML] On scaling up Tesla coils

["Lau, Gary" <Gary.Lau@xxxxxx>]

I don't think there is any electrical limit to how many NST's can be paralleled.

I think the practical limits occur with how much current you can pull from a single 120V circuit, and how heavy and bulky you want your NST farm to be.

Regards, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of shobley@xxxxxxxxxx
> Sent: Wednesday, September 10, 2008 10:30 AM
> To: Tesla Coil Mailing List
> Subject: [TCML] On scaling up Tesla coils
>
> Hi,
>
> It's been an interesting few months working with our 12kv/30ma NST coil -
> thanks for all the help on the list getting it to work.
> Now it's time to consider scaling things up, I've got some questions for
> the experienced coilers on the list.
>
> It seems that current increase is the upgrade path to yield longer arcs.
> Nearly all the transformers we've seen top out at 15Kv output. Is this the
> main advantage to a pole pig - that (depending on the ballast) it can
> handle much more current?
>
> Looking into building bigger coils, it seems that the basic size and shape
> of the secondary remains (roughly) the same - with 800-1000 turns of
> suitably gauged wire. There is a change in aspect ratio as the diameter
> increases, but not a huge change.
>
> At the moment we're comfortable with NSTs - what is the limit on how many
> of these you can combine in parallel? We would like to go from 30ma to
> 60ma, and adding another 30ma NST is the cheapest route. I think I've seen
> a coil with 3 NSTs on youtube somewhere, but not more than that.
>
> Thanks,
> Steve

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