A recently acquired part of my collection includes what I think is an IBM processor presumably from a large system.
The mounting frame is in a 3 x 3 grid. 6 modules are fitted and the other 3 locations are empty.
This thing is huge – about 30 inches square. And the weight is around 60 pounds. You can see from the blue power rail busbars that it was expected to draw substantial current.
The overall frame has a part number of 34F5089 and the module we removed for the photos has part number 34F0615.
I can’t find any information about this on the web.
Any idea what this might be from?
Here are some photos…