I was also thinking about this as well. What have the list members used
in the past to tap a ribbon primary? I was planning on rolling it with
polyethylene foam strip as Terry Blake did with his huge coil
described on in his web site.
http://www.tb3.com/tesla/hugecoil/primary/primary.html
I am wondering what he used for this. There doesn't seem to be any room for a movable tap.
Thanks,
JP
> From: pip@xxxxxxxxxxx
> To: tesla@xxxxxxxxxx
> Date: Fri, 19 Dec 2014 11:47:28 +0000
> Subject: Re: [TCML] Ribbon Primary - What size?
>
> Don't forget to account for the space that the clamp will take up between
> turns.
> Clamping for the primary tap needs a bit of thought on high power systems,
> especially for flat ribbon systems where the tendency is to fix the turns
> just wide enough apart to prevent flashover.
>
> Phil
>
> -----Original Message-----
> From: Tesla [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of John Paul Grippa
> Sent: 18 December 2014 17:30
> To: tesla@xxxxxxxxxx
> Subject: [TCML] Ribbon Primary - What size?
>
> Hello All,
> It has been a while since I have posted, but do read all of the emails on a
> regular basis. I am in the process of source materials for my first BIG
> Coil and plan on using a ribbon primary. Does anyone know how to calculate
> what thickness and height the copper stip would need to be when building a
> primary of this type? As you know, the price of copper stip goes up
> drastically when you move from say 10 mil to 20 mil or from 1" to 2'' in
> height. I was hoping to use the cheapest 100' stip that would sustain the
> current. I have seen many setups that were using stips of 2" or 3" in
> height and 30 mil thickness. Is this really necessary? Currently, I have a
> 10 kVA piggie (courtesy of the amazing John Freau) just waiting to be put
> into action. I am not sure if I will be using all 10 kVA, but would rather
> build a primary that can sustain the power I have available in case I decide
> to do so. Thanks for all of your help!
> Best Regards,JP
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