XT-keyboard controller for PROS

/Glad/ /to greet/ /you/, *All* !

I remember someone here asked for the subject (unfortunately the message was not preserved),
but due to my imminent departure, I did not have time to throw the diagram into the echo.
If anyone else is interested in the subject, I can throw it into the echo or with soap.

P.S. I converted the controller circuit from a picture into TXT format.

Have a strong connection!

*Aleksey* *Sidelnikov*.