jr tech - Yes, the color CRT viewfinders on the old RCA cameras were Beam Index with a Hitachi made tube - standard CRT configuration, not lollipop design.
Also, here is a link to the Popular Science article that I referenced in an earlier post:
http://books.google.com/books?id=lQA...extron&f=false
You have to scroll up to see the TV and lollipop tube - I have NEVER seen this set.