Development of the RCA Family of 90-Degree Rectangular Color Picture Tubes

The new RCA rectangular 90-degree shadow-mask color picture tubes represent basic advancements in the art of picture-tube development. This family of tubes includes the 25AP22A and 25BP22A, plus the recently announced 19EYP22 and 19EXP22 and other smaller sizes to follow. This new family of color picture tubes features the " new look" in screen shape, together with shorter over-all length and all the performance potential and reliability features established by the earlier RCA 21-inch round 70-degree color tubes.