DougIngraham's latest activity

The vendor selling just the one machine didn't include any details. The one with the 4 machines I emailed and got to add more photos...

What I remember is that a disk is considered inserted if the sector holes are being seen as the disk turns. This works in these drives...

If I am understanding you correctly then the answer is no. The DECmate computers are intended to talk to their internal video memory...

Consumer 3D printing can be broken up into roughly two groups with some overlap. A tool for making parts. A hobby in and of itself...

The Ideamaker slicer is another good one. I have not tried but have had the Orca slicer recommended to me.

As opposed to other types of ROM? Pretty much. There is a floating gate in the EPROM which gets a charge applied when programmed. As...

Even though you were able to read out the EPROMs and verify they match does not mean the VT100 can read them at speed. One of the...

From your new info I am changing my mind and think it must have been an 8/i or an 8/l. This is because of the chassis outside the CPU...

In 1974 and 1975 there were three possibilities for 8 models that would have been TTL compatible. The 8/e would be the most likely as...