Hello again. I made a post towards the end of the last page, about a terminal keyboard I could get my hands on. After some shopping, I've got some news. In the end, it's not a terminal. It's a 102-key SDL-conenctor board! The part number is 1391506. "Hecho por IBM en Mexico", I know, they're a bit inferior to the rest, but I got this thing for 10USD. Best of all, while it didn't come with the box, this thing is NEW, I mean absolutely positively SPOTLESS and looking like it just came out of the factory. It even came with the perfectly-fitting Styrofoam (missing a few good pieces here and there), and a resealed transparent plastic bag with a serial number on it (which I tore to shreds in my excitement while trying to get the board out). I thought I'd be getting a grime-covered 122-key monster by the pictures the seller had up on the Internet, but apparently they were illustrative; this is much, much better, better than I dreamed of!
I also bought a non-working PS/2 rubber-dome for literally pennies while I was at it, and I've already gotten the PS/2 cable out of that thing (for the most part, more on that later). Now,I would actually prefer PS/2 to be honest (so no need for Soarer's), but again, I don't have an SDL cable and can't get one. I can borrow a soldering iron, so I was thinking of simply taking out the SDL port and hard-wiring a cable to it. PS/2 cables don't have standardized colors as far as I know, though, and that's a problem because I have no multimeter to check continuity, and know of nobody who could lend me one. The PS/2 cable I ripped out is still attached to a small PCB, which has four marking where the four wires connect; VC, VS, CL, DA. I'm dead sure CL and DA are clock and data respectively, but I'm not 100% sure of VC and VS. I'm have a strong hunch VC is for VCC (5V in), and VS would then be ground. Is my hunch strong enough to just identify the wires with those markings, or am I going to fry my computer and board? I've already got the layout for how the SDL connects to the PCB, so all that would be left is to have those cables identified and to start soldering!