BoscoTo restore the Robotron K1840 (VAX11/780), the PDP11/03 must first be running in the correct configuration. For this I am looking for a working CPU card like this one.
Who can help?
zl2tod@BoscoLab
It's a very long time since I laid eyes on such a thing.
Do you have the one pictured?
It doesn't look like there will be much wrong with it, with a possible exception of a missing LSI chip.
It's a very long time since I laid eyes on such a thing.
Do you have the one pictured?
It doesn't look like there will be much wrong with it, with a possible exception of a missing LSI chip.
KimIndeed.
Quoth Wikipedia:
"The LSI–11 (PDP–11/03), introduced in February 1975 is the first PDP–11 model produced using large-scale integration; the entire CPU is contained on four LSI chips made by Western Digital (the MCP-1600 chip set; a fifth chip can be added to extend the instruction set). It uses a bus which is a close variant of the Unibus called the LSI Bus or Q-Bus"
@BoscoLab I would love to get my 11/03 up and running again too.
Do you have doco on the power supply for the BA23 case/backplane?
Thilo, EE 🤘🏼🇪🇺⚛🎗️@BoscoLab I have zero knowledge of the computers, unfortunately.
What I do know is that the fan base of Usagi Electric (David) is awesome.
They are doing a lot of reverse engineering on Discord, and I wouldn't be surprised if someone there was willing to part with those parts.
What I do know is that the fan base of Usagi Electric (David) is awesome.
They are doing a lot of reverse engineering on Discord, and I wouldn't be surprised if someone there was willing to part with those parts.