This Jones video synthesizer is comprised nearly exclusively of Jones designs. This synth includes a video patch panel made of an inset piece of hardwood with mini-jacks carrying 2vpp differential video (subsequent modules use Plexiglas). The advantages of this standard is that it limits crosstalk and noise, and making a video signal negative one simply uses a cable that flips the polarity of the wires. It was thought for a time that this system would be embraced by Jones in general, however no synthesizer at the ETC uses the format (the system at the ETC patches standard single ended 1v video through a slide matrix). Using differential video was a great idea but as an unusual standard it only made sense for patching within the panels of multi module synthesizers, and other than a few of the Tuesday afternoon participants, it was an idea that was not really implemented. Unfortunately Jones has yet to manufactured multi module synths as Hearn did.
My video hardware development work for the Experimental Television Center, and for Design Lab, included a contribution in building the last generation of custom Jones analog and digital image and sound synthesizers currently installed at the Television Center. I also have constructed various audio and video synths including a unique modular Jones video synthesizer.