Because of this thread, I chose a TS18 chassis set as my next restoration victim. This is a 7VT2, like shown here:
http://www.tvhistory.tv/1949-Motorola-7VT2.JPG
This looks like a fun project, getting a little tired of doing RCA 8PT70xx sets and needed a change of pace. I verified that r-59 (Sams#) is indeed 22 meg and tests pretty close. Ballast is open, so I am working out a substitute.
jr