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Re: [TCML] Primary coil supports
Hi Steve,
I have used wood (my 8.5" diam. coil and my 13" diam. coil). But, I
didn't simply set the primary winding on the wooden runners. I first put
the runners in the oven and dried them out (I used oak), and then
varnished. After drilling holes through the runners for tie down, I also
cut acrylic strips and set those on top of the runners. I haven't had
any problems, even at 10kva pig power.
Here's a quick photo where the acrylic runners are visible.
http://www.classictesla.com/photos/tgk/21.jpg
Here's a 10 year old photo (back in Hopkins, MN) using the same primary
(and why I stopped using strike rings about 7 years ago). Also note the
banana holders holding up the hv lines (early days).
http://www.classictesla.com/photos/bart/5199-17.jpg
So it can be done. I've arced through wood like everyone has mentioned,
but it really doesn't take a lot of standoff distance to prevent wood
arcing issues if the wood is sealed, so yes, wood can be used (just be
smart about it).
Take care,
Bart
Stephen J. Hobley wrote:
Is wood a bad choice for primary coil supports?
I see a lot of plastic being used, but I seem to be able to work more cleanly in wood...
Also can I enamel the primary coil?
Wood and shiny copper has a nice 'Edwardian' feel to it...
Furthermore - when building an MMC - is perf board OK to mount the caps?
Or is there something more suitable?
Steve
Stephen Hobley Photography
www.stephenhobley.com
317 201 4281
The Laser Harp Project - www.stephenhobley.com/build
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