How do you deal with the multiple keystroke issues? If I remember correctly, it's only able to have a few simultaneous keystrokes before it doesn't recognize it.
So yours is almost 40 years old, nice. It's amazing how far technology has moved in that time and here we are still using these ancient keyboards... they have seen some things we wouldn't believe.
I wish more modern keyboards had them as it's actually quite handy. I use it more for decoration purposes most of the time but it can be a real live saver if you keep misplacing smaller tools