[bhegges]

I haven't came across a 22JP22 set yet. Maybe this was the 23" sets referenced in the 1966 buyers guide. Some more RCA resources below, note the 22 was absent in the 1965 listing but present by 1967.

• RCA 1965 color tubes listed are the 15 (round), 19, 21 (round), and 25: http://www.bretl.com/tvarticles/docu...eguide1965.pdf
• RCA 1967 tube guide shows an expanded list of rectangle tubes 15, 19, 22, and 25: http://www.bretl.com/tvarticles/docu...HiLite0867.pdf