favorite this post IBM PS/2 power supply and two unknown expansion cards (Claremont) hide this posting unhide

IBM PS/2 power supply for a Model 80 (fits Model 60 as well) for parts or repair. Has 3 shorted transistors that I believe are FETs and I was unable to easily find replacements. I believe I have the numbers written down if you're curious. Transformer and fan are good, when you turn it on the power supply would come on and immediately go into protect mode and would stay dead until the filter capacitors drained and behavior would repeat. The fuse is not blowing.

I also have two microchannel expansion cards that I am unsure what they do. They appear to have 6 RJ-11 jacks a piece, I don't know if the Model 80 I've been restoring was originally was a PBX server or something terminals would connect to (ideas are welcomed here). Once I recapped the hard drive it booted into Xenix a form of Unix from Bell and AT&T so that seems to imply it may have been a PBX machine.

Make me an offer if you're interested, or drop me a line even if you just want to tell me your ideas of what those two cards were for.
  • do NOT contact me with unsolicited services or offers

post id: 6926191467



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