NKC-KEYr4_v1_0_gerber.zip
Design by: 10727
improved layout of the KEY board of the NDR Klein Computer (NKC) by RDK. This is the corrected and working version 1.0. Besides the original design for parallel keyboard, it now contains an ATTINY to connect PS/2 keyboards.
Info and ATTINY code here: http://schuetz.thtec.org/NKC/hardware/tast.html
Important: Do not connect Pin 8+11 of IC5 (74LS00)! The v1.0 layout contains an error which will be corrected in v1.1, soon.