Hi Dan,
Looks to me like you are doing a damn fine job so far! I don't think
there's any need to worry about excessive metal bits causing eddy currents
and losses. Screws will have no impact, unless they bridge an open circuit.
My coil uses a 15/60 NST. For the tank circuit I think I used #6 and #8AWG
stranded wire, just because it was available and I had access to ring
terminals and crimping tools. It came out looking nice and beefy and
professional, but the truth of the matter is, I seriously doubt that the
performance would be measurably different had I used just a short/direct
length of #14.
There's various images of my coil showing interconnects on these pages:
http://www.laushaus.com/tesla/sync_gap.htmhttp://www.laushaus.com/tesla/protection.htm
Insulation on the inter-component wiring mostly isn't important. I just
make sure that the layout is such that the wiring doesn't come close to
anything it might arc to. I did use NST GTO cable from the NST to the
Terry filter as it did come close to the NST case. But from the Terry
filter to the tank circuit, I just used common #18 stranded PVC wire
terminated with Faston connectors.
Regards, Gary Lau
MA, USA
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On Tue, Feb 20, 2018 at 11:34 AM, Daniel Kunkel <dankunkel@xxxxxxxxx> wrote:
> I am getting my second coil online after a 20 year hiatus and would like to
> do a decent job with the construction and build quality. I don't have the
> money or machine shop or 3D printer to make a beautiful/professional/museum
> quality display piece...but I don't want this thing to look like some
> amateur junk yard project either!
>
> So consider a moderately powered coil (15kv @60-120mA NST). Right now my
> chassis is made of wood with PVC legs to separate the levels. The primary
> coil support is a plastic cutting board. I'd like to keep the amount of
> metal in the chassis to a minimum, but it looks like I will be having to
> use screws and wood for general stand-offs, wire strain relief, and
> support. The primary coil and all wiring is 1/4" copper tubing.
>
> Here is a pic of current progress...my son helped me attach the casters!
> https://imgur.com/jL2ngVc
>
> Questions:
> What do you guys like to do for tank circuit wiring (including connecting
> the NST to the tank)?
> What kind of wire/tubing?
> What kind of insulation?
> What kind of electrical/mechanical connections (solder, nut&bolt)?
> What kind of insulator and stand-offs do you use?
>
> Thanks,
> ~Dan
> Kansas City area
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