VJ-U has posted a wonderful livecast on Operator 11 featuring the restoration of 3 Rutt-Etra raster analog video synthesizers. I was fortunate enough to be invited to check the machines out in person and have some time to try and help out. Mathew Schlanger and Benton C Bainbridge help explain the history and unique capability of the Rutt-Etra. Certainly worth a watch for those interested in the art form and unique hardware.
For those unaware of what a Rutt-Etra is, be sure and check out Audio Visualizers page on the subject. There is a lot of history with these machines, and they are still quite competent tools with a very unique look and feel.