In the 80’s Hantarex made arcade monitors. One of the best monitors around was the MTC9000. I like them. They give a very good, solid picture. They are fairly easy to fix and most parts are still available.
I have an old cocktail cabinet which holds a 14″ tube. Unfortunately the European 14″ tubes use a smaller neck connector than 20″ tubes, even if they are electrically the same. So…either I could make some quick hack and just solder a tube socket with wires to an original neck board….or I could make a new, fresh PCB capable of both 14″ and 20″, depending on what socket you mount. And voilá, this is how it turned out: