I am new to this wonderful forum but I would like to contirbute with a small guide that I made some time ago... At the end of the summer I bought an IBM XT but I was missing the keyboard, so I looked around for a solution that was easily faisable and I discovered that it is possible to use a common PS/2 keyboard and an Arduino to emulate an XT keyboard.
I am not the creator of this project but I have made a small guide that explains how to do that with permission of the original creator of the device; as I have already published the guide on The Vintage Computer Forum, I will only publish the link:
http://www.vintage-computer.com/vcforum ... -converter
and here is a picture of my homemade adapter built: