Bill Etra demonstrates the Rutt-Etra Video Synthesizer

Bill Etra demonstrates the Rutt-Etra Video Synthesizer in this amazing video. the Rutt-Etra Video Synthesizer was "an analog computer for video raster manipulation." * Etra uses the Synthesizer to manipulate the video signal of this document as he discusses the functionality and abilities of the device during the first 1 + 1/2 of this video. the next 6 minutes feature video signal manipulations set to sounds of experimental electronic musics. the Paik-Abe Video Synthesizer, the Rutt-Etra Video Synthesizer + the Sandin Image Processor were among the first + most widely used systems of their kind that enabled Media Artists to manipulate audio + video signal simultaneously + interdependently in realtime performances as well as in the production of video artworks. - jonCates

* "Rutt-etra Video SynthesizeR - ( 1972)" - AudioVisualizers.com
http://www.audiovisualizers.com/toolshak/vidsynth/ruttetra/ruttetra.htm