21-CT-55 has a new home

[cbenham]

Originally Posted by Pete Deksnis

I took measurements at screen locations that exhibited the best purity. All readings were made with a large dark cloth over the set.

Results did support the 15GP22's reputation for gamut. nly the green fell a bit short of the 0.21, 0.71 1953 NTSC standard. But not by much. Pete

One other set of data that should be helpful in visualizing the gamut of P22 phosphors is from the RCA HB-3 Tube manual, 1964.
Cliff