On Tue, Jun 6, 2023 at 1:21 PM Fred Cisin via cctalk <cctalk@classiccmp.org> wrote:
> If/when I dig it out, how much should I ask for it? (Berkeley California) > NO, Ed, I won't give it away AND pay shipping. :D > EARLY 5150, but with trivial modifications, such as additional holes in > brackets for 4 half-height drives, and probably has a different video > board and disk controller than the IBM ones that I originally bought with > it. At one time, I had a Plantronics 640x400 CGA-sorta-like video, and > I used 8 inch drives with a Vista disk controller, a Maynard, and maybe > one or two others (but only one disk controller at a time; I only did > multiple controllers with 5160 and 5170) > It had a D hole in the back panel, I might have punched an additional > D hole, . . . > I recall it having an unusual black power supply with a white switch (Did > IBM run short of inventory supply?), but I might have replaced that at > some point. > The primary distinguishing features of the very first run of 5150's are: 1) No "B" inside a circle stamped on the back panel 2) Only two case screws on lower right and left of back panel (none on top) 3) Black power supply Here's a photo that shows this ==> https://www.minuszerodegrees.net/5150/early/5150_early_case_rear.jpg Bill Degnan (from whom I learned all this) knows more about this. Sellam