I could not find out if the wires inside are Manganin/Constantin or just copper. Since the point of a KVD is to eliminate
the effects of low-ohm switches, as I understand it, then I assume the wires are the same? All the internal wires are
soldered to the switches.
Little info I could find on soldering manganin, other than a weird pair of youtube videos doing nothing.
In any event, I cleaned the area w/1200 grit sandpaper and cleaned again with IPA, and was able to solder it
relatively quick with no issues. Either I was luckly or there's no issue soldering it.
3x cleans after soldering with IPA and it seems to be fine.
I can dial in any voltage within limits of my uncalibrated Fluke 8842, below reads as 1.0000V so I guess it is
off about 70mV.