About 10 years ago I had this Jamma adapter thingie that was sorta like the J-pac I suppose. Like the j-pac only for the fact that it let you connect a non-arcade source to a jamma cab. That's where the similarites end. I don't have the thing anymore and I actually never got around to using it. What it did was simply let you connect ANYTHING (and I think this was in the 16 bit days maybe?, so anything meant SNES, Genesis, etc or even a DVD player or VCR) to your arcade monitor. Just the monitor (speakers?). No controls, joysticks, buttons, conin slots.
Anyone remember/ have this thing? How well did it work? Are there similar products like J-Pac, but with S-video (or maybe even component or HDMI) hookups rather than VGA? Searching google brought up nothing, since I don't know what to search for. Most results are the opposite: how to hook up a jamma board to a TV, aka supergun, which is NOT what I am looking for.