5 Feb
2026
5 Feb
'26
12:22 a.m.
On Sun, 1 Feb 2026, Rob Jarratt wrote:
I have finished partially reverse engineering the
schematic for the
monitor board in my VT100. I have tried to make it follow the layout
used in the printset. I hope I haven't made any mistakes, but it is
quite possible that I have.
Looking at your photos, it seems that the schematic for the Elston DM10
could be the right one. It can be found on bitsavers in the Microterm
MIME-I terminal manual. It really uses a PNP HOT as Q414.
Christian