Vintage Computer Federation Forums

Good day,

I currently have a PDP11/05 here that is a bit ill.

It consists of the CPU modules, two Plessey 16k word memory modules and a mystery FTL11 card where the console is attached and that itself connects back to the CPU, also it has a connector where 2 external ports (db9 and db15) from the back of the machine go.

I already repaired t...

Save the Machine has a backlog of quite a bit of documentation. Most of it is late 60's - 70's IBM docs, with a load of misc Plessey Microsystems and a few MAI Basic Four manuals. Our goal is to eventually get it all scanned and uploaded to bitsavers (I found some threads on vcfed and classicc...

I don't know if anybody cares about stuff like this, but I thought I'd share a quick story about a project I was hired to build back in the 90's as an embedded systems software developer. This is a project I wish I still had access to.

It's something I worked on where I was asked to build a "real-time GPS-driven moving map display" -- what we simply call a "GPS" tod...

Hey everyone

I recently acquired an Atari PC3 that had some signs of life but a bit of faulty ram, which now that I've replaced it shows less signs of life with it seemingly having trouble generating a good reset signal for the 8088

Through searching for schematics the only place I can find them mentioned as existing in someones hands is on this forum b...

I have been restoring a VT100. I have replaced one of the RAM chips and the sender UART for the keyboard and the main board seems to work, except for the video output. I think the bad video output may be affecting the video driver board, so I have removed it for now. I am using the external video connector to drive an LCD screen and a little video converter. I have tested this s...