Quote from Lemony Vengeance: “building the JAMMA adapters by hand probably won't happen anymore. Lots of time spent making just one.. time that largely I've begun to value a lot more. ” That is exactly why I was looking for "plug-n-play" solution Found…
Quote from acblunden2: “If anything Lemony can build you one but I think even he would recommend you pursue the 3 options I've listed. ” Agreed. until I design something PCB based of my own, building the JAMMA adapters by hand probably won't happen…
Voultar has an open source one that he released to the community. retrorgb.com/open-source-capco…sic-to-jamma-adapter.html There is a ZIP file with the gerbers so you should be able to fab a board from those.