Cant find info on Hitachi TV

[Daave]

Hey all, been a while since I posted here.

I have a guy that has has a Hitachi model TV, 19 inch, marked with model CT820. Thinks its late 60's, but I have no image of the set and I can't find any information on google or otherwise.
Im only interested in sets that are not solid state colour sets but he isn't sure and I can't find out.

Model CT-820
Serial Y3E001786

Anyone have images/information on it?

Thanks