Board completed! Top, an original one (photo by Eric Wright); bottom, my replica: Time to do some testing. I’m really afraid of those 4116 rams, courtesy of my favourite Chinese vendor in Aliex...

Update: Arduino sketch and programmer utility finished. The programmer is now completely functional. The K-1013 Floppy Disk Controller uses an optional (and obsolete) 256x8 bit, 20 pin PROM to be...

A couple of weeks ago, Hans Otten published the sources of the Resident Assembler and Editor ROMs of the KIM-5 board. They run with his KIM-1 emulator, so it was time to have some fun with it. Com...

A few weeks back, Ryan Roth made very interesting post in the PAL 6502 computer group: And, as you see, he kinda challenged me! I took the bait and, in a couple of hours, came up with th...

First “dry” test: powered up without connecting to the Kim, nothing blew up, no magic smoke, chips cold except for the D765 and the prom, which are lukewarm. So far, so good! The boa...

Update: K-1013 functionallity implemented. Still in beta, but working reasonably well. Also, sent to hell the Python memcfg utility and rewrote it in plain C. I’m working on a fully configurable ...

Routing of front and back layers completed! Everything checks against the schematic. I’m rechecking the gerbers before sending it to fabrication, but I don’t expect anything major. Time to start ...

After a long while, in which other projects have grabbed my attention, I’m finally resuming work on the replica. As this board has mainly straight lines, I’m skipping the Inkscape part and directl...

Update: David Given has already merged my KIM-1 ports into his repository, so they are now part of the main branch. It seems that everything related to CODOS 1.0, MTU’s operating system that was ...

Update: New corrected and enhanced version For it to be minimally usable, I need memory for my KIM-1. So, I’ve designed what I believe to be the most flexible KIM-1 memory expansion available: ...