> Possibly the best resistor you can have is a spiral air wound coil
> of Nichrome or other resistance wire

I have a couple of 1kW heater elements that come in useful. Or did,
I haven't used the wire for a little while. From memory the elements
are 70 ohms and have about 4.5m of spiral-wound wire, or around
65mm per ohm. 100-ish turns of 13mm diameter implies about 10W
per 40mm (at red heat), although the resistance will be lower at that
temperature. I think heater wire is fairly consistent quality as there are
usually no local hot spots. In the past I've used pieces, sometimes in
parallel, as high-current sense resistors, dummy loads, and also as the
'blade' in a polystyrene foam cutter, together with a PSU and LM350

Joe
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