It is all tubes, although I didn't count them....doesn't seem like there are that many.....I'll take a chassis shot when I get to this next step
I bought an RCA WR64B dot/bar/crosshatch generator off eBay, but much to my surprise, it has clips for each color gun rather than going into the antenna, and a thicker gray bare wire. Have to figure out how to use this thing, is anyone familiar with this unit?