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Inhaling Epoxy!




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From:  D.C. Cox [SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent:  Wednesday, June 10, 1998 12:35 PM
To:  Tesla List
Subject:  Re: Inhaling Epoxy!

to: Bert S.

Contact 3M (Minnesota Mining & Manufacturing) Co. in Minneapolis, MN.  They
have various hi-dielectric electrical epoxies that are suitable for this
type design.

DR.RESONANCE-at-next-wave-dot-net


> From:  Tesla List [SMTP:tesla-at-stic-dot-net]
> Sent:  Monday, June 08, 1998 8:36 PM
> To:  'Tesla List'
> Subject:  Inhaling Epoxy!
> 
> 
> 
> ----------
> From:  c604313-at-showme.missouri.edu [SMTP:c604313-at-showme.missouri.edu]
> Sent:  Monday, June 08, 1998 1:06 PM
> To:  Tesla listserver
> Subject:  Inhaling Epoxy!
> 
> Hello to all,
> 	I'm planning on constructing my own secondary coil form. This is
> how:
> 	First cut out two disks from a piece of ply wood. Separate them
> with braces such that the disks appear to be two end caps of a cylinder.
> Take a thin cotton sheet and stretch it between the two end caps such
that
> the sheet appears to be the sides of the cylinder. Next, coat the sheet
> with epoxy and let cure. wrap on the wire and coat with another layer of
> epoxy. Cut coil from wooden disks and finish of with cotton sheet / and 
> epoxy for the end caps.
> 
> 	PROS:
> 
> 	1) Secondary can be made to any dimensions one chooses.
> 	2) Epoxy has strong dielectric strength.
> 	3) Coil walls can be made thin.
> 	4) Epoxy has very low dissipation factor to RF currents.
> 	5) Epoxy is nearly impervious to water moisture.
> 	6) Epoxy cures hard yet will not crack.
> 	7) Left over epoxy can be used to insulate / adhere other parts of
> 	   the T.C.
>  
> 	CONS:
> 
> 	1) Expensive.
> 	2) Labor intensive.
> 
> 	My question to the group is this: Where might I find a low viscous
> epoxy with good electrical characteristics? 
> 
>                                        Thanks in advance,
>                                        Bert S.
> 
> p.s. Why do we use the Earth as ground?
>      Because, it's the biggest thing closest to us.
>  
> 
>