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Re: new primary
Tesla List wrote:
>
> Subscriber: davide-at-exit1.i-55-dot-com Sun Jan 26 13:17:58 1997
> Date: Sat, 25 Jan 1997 00:07:21 -0600
> From: David Euans <davide-at-exit1.i-55-dot-com>
> To: Tesla group <tesla-at-pupman-dot-com>
> Subject: new primary
>
> Hoped to be sending photos of the new coil I bragged about two weeks
> ago. However, it was grossly over-coupled and sparks started breaking
> out all over the secondary. This was with an inverted cone type primary
> made of wimpy 4 ga wire at a 45 deg pitch. We figured that the primary
> wasn't going to work well, so the results were not a surprise.
>
> Now we are making a new flat spiral primary from 1/2 in soft copper
> tubing spaced 1/2 inch apart - still 10 turns. Just for the heck of it
> we are in the process of silver plating the tubing (all 60+ feet of
> it). I know we are only gaining approx 4% better conductivity over
> copper, but it does look nice!! We also gave our secondary two coats of
> a two part product called KraftKote. It makes a tough coating that
> seems to be somewhat flexible and therefore might not crack as easily as
> Behr Build 50. Only time will tell. We also used a product called Eat
> a Bubble that helps remove the small bubbles that form in the curing
> process of epoxies. We got both products from a company called Klock
> Kit. I don't have the phone # in front of me, but will find it if
> anyone is interested.
>
> Will post photos when we get it all back together, hopefully in the next
> two weeks
>
> Dave Euans
I'm allways looking for new plastic materials. Let me have it!