Alright, I got those PSU's a while back,
http://forum.allaboutcircuits.com/showthread.php?t=54007
I got one working like a charm, but the second one only works when the variac is turned past 70% or so, I'm pretty sure it's the variac, since outside of that (once it's turned past that spot) it works perfectly, and it definitely has power, it's not a slow climb to normal, it's either good or bad.
I cleaned the variac with an eraser, didn't seem to make much difference, looking at the contacts it looks like the silver coating has been worn off and it's down to the copper wire, and the brush (not sure exactly what it's called) is pressed against it fairly loosely.
I can provide more close-ups if you want.
Any ideas?
http://forum.allaboutcircuits.com/showthread.php?t=54007
I got one working like a charm, but the second one only works when the variac is turned past 70% or so, I'm pretty sure it's the variac, since outside of that (once it's turned past that spot) it works perfectly, and it definitely has power, it's not a slow climb to normal, it's either good or bad.
I cleaned the variac with an eraser, didn't seem to make much difference, looking at the contacts it looks like the silver coating has been worn off and it's down to the copper wire, and the brush (not sure exactly what it's called) is pressed against it fairly loosely.
I can provide more close-ups if you want.
Any ideas?