After dcpedit's Dissatisfaction30, mostly meant as a macropad that mimics the 75% look of the Satisfaction 75, mkylama came up with the Disorder30, an ISO adaptation based on the same idea.
The Disorder30 includes the original "75%" layout and an extended "1800" layout.
The splendid 75% specimen in the photo above was posted by Seili-. Meanwhile gelotuz built the 1800 version:
You can cut the PCB smaller size if you prefer 75% version and use jumper wires if want turn it back larger size – gelotuz.
The IBM Lighted Program Function Keyboard (LPFK) was used as an extra input device when doing computer aided design on the IBM RS/6000 series of machines. Posted by epearl-tv.
