The MOS KIM-1 is a quite rare collector’s item today. So if you hold one in your hands, you better take some high resolution pictures of the board. Here they are:
Note that this is the original revision of the board (pre-Rev A), and the 6502 CPU is from week 51 of the year 1975 – so it has the ROR bug!
Does anyone know what the three digit numbers 002 and 003 on the 6530 RIOTs mean? Are these the indexes of the ROM images? If so, what is ROM #001 and was there a #000? Also, the back has the number “0372” on it – is this a serial number? Looking at the dates of the chips, this seems to be the oldest KIM-1 of all those I could find on the internet.