Re: Core Material

• To: tesla-at-poodle.pupman-dot-com
• Subject: Re: Core Material
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Sat, 03 May 1997 23:47:13 -0500
• Approved: tesla-at-stic-dot-net

Subject:       Re: Core Material
       Date:   Fri, 02 May 1997 16:14:29 -0700
       From:   Skip Greiner <sgreiner-at-wwnet-dot-com>
Organization:  Greiner, Ltd.
         To:   Tesla List <tesla-at-pupman-dot-com>
 References: 
            1


Tesla List wrote:
> 
> Subject:  Core Material
>   Date:   Wed, 30 Apr 97 21:18:36 UT
>   From:   "Robert Davis" <Davis_Lewis-at-msn-dot-com>
>     To:    tesla-at-pupman-dot-com
> 
> Hello Coilers,
> 
> I am about to start building the secondary of my first (small coil), I
> have
> some Acrylic rod and thought of using this for the former.  Being soild
> I
> would be able to screw and bolt connections to the former.  I would
> think
> losses would go up slightly as opposed to sealed tube construction but
> not
> enough to be a problem.  Would there be any other problems using a solid
> plastic core?
> 
> Also, I was thinking about half wave coils, not many people seem to
> build
> these.  Why is this?
> 
> I look forward to receiving your replies.
> 
> Rob Davis (UK)


Hi Rob

I build all of my secondaries using acrylic rod and acrylic plates for
the end caps and internal supports. I believe that the coil has higher Q
and lower losses. I use acrylic glue to hold the thing together and
where bolts are required I use nylon. It all works great.

Skip

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