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Re: Is perspex suitable material for former of secondary of a Tesla coil?

Original poster: "andy" <andy.farrar@xxxxxxxxxxxx>


Many thanks for your informative reply.
Just one thing my clear acrylic tube is of quite thick plastic.
Does the thickness matter?
I think it is about 5 or 6mm thick
Cheers
Andy

----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, October 12, 2005 11:21 PM
Subject: Re: Is perspex suitable material for former of secondary of a Tesla
coil?


> Original poster: Steve Conner <steve@xxxxxxxxxxxx>
>
>
> >is the Perspex tube I have suitable?
> >Also is Grade 2 ECW Suitable?
>
> "Perspex" and "Grade 2 ECW" probably won't mean much to readers outside
the UK.
>
> I have a coil wound on a clear acrylic tube and it has always worked
> fine with up to 4ft sparks from a 18 inch winding length.
>
> As for "Grade 2" "Magnet wire", the grades are defined in some
> British standard or other, BS6811 I think. There are three grades,
> the higher grade number means thicker enamel with a higher voltage
> rating. I guess Grade 3 is the equivalent of what the Americans call
> "Heavy build".
>
> I think most of my coils are wound with the Grade 1 stuff which is
> the thinnest poorest insulation you can get. It was just whatever RS
> or Maplin had on sale. Even so they have failed by tracking down the
> inside of the former before anything bad happened between turns. So
> I'd think Grade 2 would be fine.
>
> Steve Conner
> http://www.scopeboy.com/
>
>
>