Enclosure holes drilled, dry-fitting all the parts to be sure everything fits right

Lining up enclosure to mill ventilation slots

It's hard to securely clamp a sheet metal box. Well, whatever, forget the ventilation slots.

Everything installed and wired up. The big cylinders are 100-watt 25-ohm power resistors. The gold box is a 25-watt 8-ohm power resistor.

I had plans to make this look very slick and professional, but it does its job just as well ugly.