We have 13 of these N.O.S. 6072 tubes .they are USA made, and branded IBM, so I guess you can use them in your PC.......more likely in your C12, C24, Ela M251 or other variation . You also might need these for some classic mid 60's Guitar Amps.
We have an extensive list of about 3,000 tubes for sale, most of which are NOS (New Old Stock) and NIB (New In Box). Here is a link to access the list. If you highlight the link and right click it, you can open it. If you're interested in any tubes, call or email Dan, (but do not text, please!) for more information. +1-510-527-1411 or email@example.com