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Re: 16" coil
Original poster: "tesla by way of Terry Fritz <twftesla-at-uswest-dot-net>" <tesla-at-paradise-dot-net.nz>
Excellent toroid core is another HVAC product. ie 1" thick phenolic foam
sheet already made with AL foil on each side.
Cuts to a circle easily
Strong
Light
Avaialble as offcuts from HVAC firms for a dozen beers
Ted L in NZ
SNIP
. Get pizza pans or maybe a
> metal covered plywood disk for the center. The rule is, I guess, to size
> it so it "looks right". Best rule I know of...
>