FELIX - VIDEO SYNTHESIZER

here's a page about an interesting 70s canadian video synthesizer "Felix" 

"During the period of 1974-76, the 'Felix' videosynthesizer was built from custom printed circuit boards (created by Jim Armstrong) which were comprised of 'adder-multipliers' (analog mixers), 'window comparators and keyers'(separate channel keyers), '16-channel quantizer' module (slicing a signal / ramp according to threshold), a switcher - mixer (re-built by Razutis from a Viscount model) and accessory input/output devices (routing) all housed in a large console (provided by Tom Osborne from surplus equipment at St. Paul's Hospital, Vancouver)."