I have a 27" kortek laying around, it's try-sync and will even do 800x600@60hz, cool stuff. But, picture quality wise, it's garbage compared the Nanao 29" in my blast city cab. It's like night and day. if you are building a cabinet and considering a 27" tube, do yourself a favor and build a slightly larger cab and find a Nanao crt. It only does 480p max, but it's try-sinc and every console has a VGA out adapter available. ( I run a PC and dreamcast that cab. )