Hi, a good used, working TV 7D/U tester, obviously cosmetically showing its life in the military but still reliable. The TV7 tests transconductuce, closest to actual use. Used mostly for hobby antique radio repair tube testing but winding down pretty much these days, so it just shouldn\'t sit around. Sold as is, but has always worked well for me on lot of different kinds of tubes. Pretty much now the standard even for audiophile tubes. Good luck offerding. No international sales, CONUS U.S. only.