Re: Coil form

• To: tesla-at-pupman-dot-com
• Subject: Re: Coil form
• From: Malcolm Watts <MALCOLM-at-directorate.wnp.ac.nz>
• Date: Mon, 19 Aug 1996 08:04:31 +1200

Replying to query on HDPE pipe...

> I have spent some time looking for a 10" coil form and have
> finally found som e LDPE pipe.   This sounds like an ideal plastic
> to use. The only trouble is th at it is 12mm thick (its plastic gas
> pipe).
> 
> Will this have a significant effect on the Q of the secondary.
> 
> Does anyone have any experience with this pipe?

In order, no, and yes. I've measured coils with Q's in excess of 450 
when wound on the _coloured_ pipe, NOT black.

Malcolm

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