Upgrades, Problems, Parts

It’s been an exciting few weeks. Archimedes The Archimedes continues to confound me. I finally got a replacement 1772, plugged it in and… No change! At this point I have swapped out all the chips that feed the floppy disk. If you look at the schematics, I have socketed and tested IC29, IC30, IC38, ICContinue reading “Upgrades, Problems, Parts”

Another one lurches to life

I have got the Acorn Electron working! I’m actually quite proud of this one. My diagnostic was that the fourth RAM chip was dead and I was spot on first go. I’d ordered the RAM from China as it’s so hard to source this stuff locally. While waiting for it to arrive, I realised I’dContinue reading “Another one lurches to life”