Round coil on square core is fine, though you'll have to use a bit more
wire to get the same number of turns. You really only need enough clearance
for the core to slide freely inside the coilform. Insulate the steel sheets
from each other by spraying a bit of clear coat or varnish on them before
assembly.
Good luck and have fun!
- Jason
On Fri, Feb 14, 2014 at 11:13 PM, Caleb Thompson <calebriant777@xxxxxxxxx>wrote:
> I am going to build a slide choke for my tc, but I have a few questions. I
> have 500 ft of 10 awg thhn and a square core 2×2×16 made of 86 sheets of
> steel. My question is, how much space needs to be between the core and the
> coil? And can the coil be on pvc even though the core is square or should
> the coil conform to the core? And input will help, thanks.
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