Finally finished cutting and milling my Primaries and secondaries, gave them a cote of electrical insulating varnish, to help bind them. The primary cores weigh 3KG each, 12kg in total of laminated transformer steel. The secondaries a bit less.
Wire finally arrived, it was very hard to come by in a small quantity, ended up with 22kg on a reel. Size is 7mm x 2.5mm flat.
Must catch up on some work and then will strip G and wind again for maximum inductance to control the through current. Primaries will be of the same wire, for lowest possible DC resistance.

See You soon, Regards Cornboy.
...but it did hold it fine, no damage to the flat contacts...except some minor edge marks.

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