Have not pulled the back or even plugged it in; but, here's what looks to be a mid '70's 17" Magnavox color portable using the T981 chassis. It's been a long time; but, I think I used to have a 19" with this chassis and I think it used a bonded yoke inline CRT.

http://i538.photobucket.com/albums/ff341/radiotvnut/2010_1028tv30015.jpg