When you want to recreate an existing machine, is it better to recreate the hardware to install the original software, or to create new hard...

Since my last post about trying to repair the EMU1, I've done a whole bunch of new tests. I also replaced a few integrated circuits. The...

 In fact, I still cannot read the contents of the EMU1 boot disk. On the other hand, I accumulate the validations of parts that have become ...

The last time I posted about the EMU1 motherboard refurbishment, I stopped at the detected problem of the system reset. In fact I was able t...

Well, finally, as expected, I was able to set up communication with port #0 of the SIOs without difficulty. It works with the SIO/2 as well ...

To get away from the topics I've been working on for several months now, I intend to build a small tube audio amplifier and to 'rela...

Following on from my last post on the EMULATOR 1, I spent some time trying to get communication on port #1 of one of the new SIOs I recently...