Over-coupling.
Im sure someone will elaborate on that but the main reason for my reply is
that I take exception to your statement that copper tubing primaries are
aesthetically unappealing.
I think they are the best looking part of many coils.
On Wed, Aug 31, 2011 at 1:39 AM, James Hutton
<b-u-r-t-o-n-boy@xxxxxxxxxxx>wrote:
Hello,
so I was just wondering why no one uses helical coils with insulated wire
like this: http://www.johndyer.com/MakerFaireJD06.jpgwhen building big
static gap tesla coils.
I have seen tons of small sgtc's with a primary like that, but it seems
that with bigger sgtc's people always use copper tubing and carefully
space
them in a flat or conical spiral.
I don't understand this. Helical coils with insulated wire are so much
easier to make, they cost less, their more durable, look better, and take
up
much less space.
Is it because helical coils are less efficient?
I need to build someone a nice looking tesla coil that is 900w (15/60nst)
and makes ~4ft lightning. I dont want the base looking huge, and I can't
spend a whole bunch of money on 50ft of copper tubing.
Should I still go with a pancake type primary using the usual copper
tubing? or can I just get a pvc pipe wider then my secondary and wind an
insulated wire around it/
and theres no way I'm air winding a copper tubing helical coil :P I dont
know how people have the patience for that!
thanks for the help!
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