In case you had not seen it already. I finally managed to control my big HP 7970E 9-track tape and my HP 2631G dot matrix from the little HP 85 that could. Hey, they all talk the same HP-IB after all (well, not really but close enough). Here is the resulting demo of this odd 1970's trio: https://youtu.be/YS9dGYUbNd0 Marc
