Re: Primary coil

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Ed Phillips <evp@xxxxxxxxxxx>

Tesla list wrote:
> Original poster: "M G" <mailto:gt4awd@xxxxxxxxx><gt4awd@xxxxxxxxx>
>
>
> Hi everyone, I finished making my primary coil. It has
>
> eleven turns using 10 ga. solid copper wire. The turns
>
> are spaced at least half an inch, and the coil is on a
>
> 35 degree angle.
>
> The spacing is fine, but the coil is uneven at parts.
>
> The 10 ga. wire was not the easiest to shape right.
>
> I was wondering if this is going to affect the coil
>
> performance a lot, or if my primary should be fine?
    Won't affect the performance at all.
> Is the perfect, circular, shaping of most well built
>
> primary coils for performance reasons, or is it
>
> just nice to look at?
    Just for looks and "pride of ownership".  Important points but 
only of importance after the gadget works to your satisfaction.

> By the way, what should I do to hold the wire in place?
>
> Right now its just pressed agianst the wood inside the
>
> slots. If it were to fall the coil would be ruined. I could
>
> use wood/metal epoxy but it is flammable. That is what
>
> I used to attach the primary supports to the wood base.
    I'm not aware that there's any flammability problem with epoxy - 
it's high temperature stuff and almost indesctructible.  You can get 
by without anything holding the wire inplace but a couple of 
ideas.  You could mount a piece of wood on top of each of the formers 
or else, if you don't care about looks, just hot melt glue.  It's 
great stuff and if you're not already using it you should get some 
and try it.  Quick and easy for lots of jobs.
> Thanks,
>
> Matt
Ed