Not quite. The wire is from the main transformer (I'm pretty sure it's the +5V center-tap), to the power supply board. Ah, there's also crusty black gunk on the spade lug, where the connector slides onto it; and on the PCB around the outer perimeter of the solder bead at the base of the lug. See the picture again: http://ana-3.lcs.mit.edu/~jnc/jpg/PDP11s/SigmaBurnedConnector.jpg Maybe this is just a sign of a connector running hot, but that sure looks like it was running a _lot_ hotter than such a connector should. There is a brown spot on the PCB, but I can't tell if it's surface deposit, or goes deeper; from the other side, I do see a small area of slight discoloration. And I've just noticed that the solder job on the second of the two through- board pins is crappy - maybe that's the source of the problem? I don't, alas (see previous message). Right, but the wire looks fine - the signs of over-heating (and therefore the voltage drop) is only right at that connector. Yes, that's the only thing I saw. The seller had powered it on, and the 'lights came on', so I'm pretty sure it is working, but... I've found that when working with large things and a small iron, you may not get good enough heat transfer with the bare iron to heat the item up enough (no matter how hard you press). So sometimes I use a small bead of solder to get better heat transfer from the iron to the piece. But yeah, the piece needs to get hot enough to melt the solder itself. Ah, well, off to try a few things. Thanks everyone! Noel