Category Archives: Retro-Computing

MUSS Source Code

  MUSS is the Manchester University Software System. It is an operating system that was designed and built at Manchester University for MU5, designed to be portable, and in fact ported to other machines. In October 2017 I asked the … Continue reading

Posted in MUSS, Retro-Computing | 3 Comments

Another DEC Rainbow 100+

I recently acquired another Rainbow 100+. Here is a picture of it: This came about because a little while ago I was given a Rainbow, and the person who gave it to me had a second one that he was … Continue reading

Posted in Retro-Computing | 2 Comments

More Leaking Batteries

I haven’t been very active lately because I have had to temporarily relocate my collection. While moving it back again I took the opportunity to reorganise things a bit. In doing so I came across the first two PC motherboards … Continue reading

Posted in Retro-Computing | Leave a comment

Update on H7826 Power Supply Repair

It has been a while since I last posted anything about what I have been up to. However, I have been busy trying to find out what is wrong with the H7826 power supply out of my TURBOchannel Extender. I … Continue reading

Posted in Retro-Computing | 2 Comments

Repair Progress on the H7826 Power Supply

I have been working on the H7826 power supply that came in the TURBOchannel Extender of my DECstation 5000/240. Normally, after a visual inspection, I will just apply power to see if a PSU works. This one, though, was not … Continue reading

Posted in Retro-Computing | Tagged | Leave a comment

Imaging RD51 From a DEC Rainbow 100 Model B

I recently acquired a DEC Rainbow 100 Model B, with a working RD51 disk. The disk is running MS-DOS 2.11. I want to¬†preserve the contents of the disk before it fails. A while back I¬†acquired the MFM Emulator board designed … Continue reading

Posted in Retro-Computing | Tagged | 1 Comment

Corroded H7826 Power Supply

Now that I have got the DECstation 5000/240 working again it is time to move on to the TURBOchannel Extender that came with it. This is in a terrible state, with lots of corrosion all over the place. The worst … Continue reading

Posted in Retro-Computing | Tagged | 1 Comment