The biggest worry I have regarding the ebay auction are the three missing core memory case screws. Implies a non-DEC repair/inspection attempted.
Bill On Tue, Sep 12, 2023, 11:29 AM Michael Thompson via cctalk < cctalk@classiccmp.org> wrote: > I have seen lots of small differences between machines with no real > explanation of why. > > > On Sep 12, 2023, at 10:11 AM, Bill Degnan via cctalk < > cctalk@classiccmp.org> wrote: > > > > The recent Ebay auction for the original PDP-8 got my attention because > one > > of the photos (the processor logic flipchip array) is a nice snapshot for > > comparison purposes with the system I am working on. > > > > https://vintagecomputer.net/digital/pdp-8/PDP-8_flip-chips_left.png > (mine) > > https://vintagecomputer.net/temp/EBAYPDP-8ProcessorFlipchips.jpg > > > > Given my PDP-8 is close to working, I would assume that the Ebay PDP-8 > > would have a fighting chance, at least as far as the flip chip > > configuration goes. This is also a nice confirmation that I more or less > > have the flipchips in the right places. There are only a few slight > > differences. > > > > Bill >
