Category Archives: 2650

Modified PIPBug problems

There is a problem with the modified PIPBUG EPROM that was originally provided for use at 300/4800 baud. It *mostly* worked, but the “G” command was broken.

I’ve uploaded new copies of a PIPBug image from an original 2608 device, but I’ve not yet been able to create or test a new 300/4800 baud version as my EPROM burner is broken.

When I can, I will upload new versions to the git repo at:


Remaking the 78up5 2650 mini-computer

Many Australians growing up in the 1970’s and early 80’s had their first exposure to hobbyist computers through projects published in Electronics Australia and Electronics Today International magazines . My first computer was the 2650 minicomputer published in May 1978 which was designated the 78up5.

Inspired by the creation of the Super-80 reproduction, another great Australian computer from the same era, I have created the 18up5 to bring this classic and simple design back to life using KiCad.

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